diff --git a/docs.it4i/general/obtaining-login-credentials/obtaining-login-credentials.md b/docs.it4i/general/obtaining-login-credentials/obtaining-login-credentials.md
index 0ab2fa3a7089d287c9836170c7377961e2af5e83..f6186f537bb62b97b215a8b823946b2c02a503f9 100644
--- a/docs.it4i/general/obtaining-login-credentials/obtaining-login-credentials.md
+++ b/docs.it4i/general/obtaining-login-credentials/obtaining-login-credentials.md
@@ -111,7 +111,7 @@ Once authorized by PI, every person (PI or Collaborator) wishing to access the c
 1. Full name and affiliation
 1. Statement that you have read and accepted the [Acceptable use policy document](http://www.it4i.cz/acceptable-use-policy.pdf) (AUP).
 1. Attach the AUP file.
-1. Your preferred username, max 12 characters long. The preferred username must associate your surname and name or be otherwise derived from it. Only alphanumeric sequences and dash signs are allowed.
+1. Your preferred username, min 3, max 12 characters long. The preferred username must associate your surname and name or be otherwise derived from it. Only alphanumeric sequences and dash signs are allowed.
 1. In case you choose [Alternative way to personal certificate](#alternative-way-to-personal-certificate), a **scan of photo ID** (personal ID or passport or driver license) is required
 
 !!! warning
diff --git a/docs.it4i/software/tools/ansys/ansys-cfx.md b/docs.it4i/software/tools/ansys/ansys-cfx.md
index 48dac488a1a9cf0215f555a0faa08aec0f5cd86d..acbee98c4c8431e4465121cce44d6d846b3f6f41 100644
--- a/docs.it4i/software/tools/ansys/ansys-cfx.md
+++ b/docs.it4i/software/tools/ansys/ansys-cfx.md
@@ -1,6 +1,6 @@
 # ANSYS CFX
 
-[ANSYS CFX](http://www.ansys.com/products/fluids/ansys-cfx) software is a high-performance, general purpose fluid dynamics program that has been applied to solve wide-ranging fluid flow problems for over 20 years. At the heart of ANSYS CFX is its advanced solver technology, the key to achieving reliable and accurate solutions quickly and robustly. The modern, highly parallelized solver is the foundation for an abundant choice of physical models to capture virtually any type of phenomena related to fluid flow. The solver and its many physical models are wrapped in a modern, intuitive, and flexible GUI and user environment, with extensive capabilities for customization and automation using session files, scripting and a powerful expression language.
+[ANSYS CFX][a] software is a high-performance, general purpose fluid dynamics program that has been applied to solve wide-ranging fluid flow problems for over 20 years. At the heart of ANSYS CFX is its advanced solver technology, the key to achieving reliable and accurate solutions quickly and robustly. The modern, highly parallelized solver is the foundation for an abundant choice of physical models to capture virtually any type of phenomena related to fluid flow. The solver and its many physical models are wrapped in a modern, intuitive, and flexible GUI and user environment, with extensive capabilities for customization and automation using session files, scripting and a powerful expression language.
 
 To run ANSYS CFX in batch mode you can utilize/modify the default cfx.pbs script and execute it via the qsub command.
 
@@ -47,8 +47,12 @@ echo Machines: $hl
 /ansys_inc/v145/CFX/bin/cfx5solve -def input.def -size 4 -size-ni 4x -part-large -start-method "Platform MPI Distributed Parallel" -par-dist $hl -P aa_r
 ```
 
-Header of the PBS file (above) is common and description can be find on [this site](anselm/job-submission-and-execution/). SVS FEM recommends to utilize sources by keywords: nodes, ppn. These keywords allows to address directly the number of nodes (computers) and cores (ppn) which will be utilized in the job. Also the rest of code assumes such structure of allocated resources.
+Header of the PBS file (above) is common and description can be find on [this site][1]. SVS FEM recommends to utilize sources by keywords: nodes, ppn. These keywords allows to address directly the number of nodes (computers) and cores (ppn) which will be utilized in the job. Also the rest of code assumes such structure of allocated resources.
 
-Working directory has to be created before sending PBS job into the queue. Input file should be in working directory or full path to input file has to be specified. >Input file has to be defined by common CFX def file which is attached to the CFX solver via parameter -def
+Working directory has to be created before sending PBS job into the queue. Input file should be in working directory or full path to input file has to be specified. Input file has to be defined by common CFX def file which is attached to the CFX solver via parameter -def
 
 **License** should be selected by parameter -P (Big letter **P**). Licensed products are the following: aa_r (ANSYS **Academic** Research), ane3fl (ANSYS Multiphysics)-**Commercial**.
+
+[1]: ../../anselm/job-submission-and-execution.md
+
+[a]: http://www.ansys.com/products/fluids/ansys-cfx
diff --git a/docs.it4i/software/tools/ansys/ansys-fluent.md b/docs.it4i/software/tools/ansys/ansys-fluent.md
index ef50d856c3a5d5070d95cfc3f8d391e35ea44802..6f19025f31df0c363bf80253cd53cc0d52437323 100644
--- a/docs.it4i/software/tools/ansys/ansys-fluent.md
+++ b/docs.it4i/software/tools/ansys/ansys-fluent.md
@@ -1,7 +1,6 @@
 # ANSYS Fluent
 
-[ANSYS Fluent](http://www.ansys.com/products/fluids/ansys-fluent)
-software contains the broad physical modeling capabilities needed to model flow, turbulence, heat transfer, and reactions for industrial applications ranging from air flow over an aircraft wing to combustion in a furnace, from bubble columns to oil platforms, from blood flow to semiconductor manufacturing, and from clean room design to wastewater treatment plants. Special models that give the software the ability to model in-cylinder combustion, aeroacoustics, turbomachinery, and multiphase systems have served to broaden its reach.
+[ANSYS Fluent][a] software contains the broad physical modeling capabilities needed to model flow, turbulence, heat transfer, and reactions for industrial applications ranging from air flow over an aircraft wing to combustion in a furnace, from bubble columns to oil platforms, from blood flow to semiconductor manufacturing, and from clean room design to wastewater treatment plants. Special models that give the software the ability to model in-cylinder combustion, aeroacoustics, turbomachinery, and multiphase systems have served to broaden its reach.
 
 ## Common Way to Run Fluent Over PBS File
 
@@ -38,7 +37,7 @@ NCORES=`wc -l $PBS_NODEFILE |awk '{print $1}'`
 /ansys_inc/v145/fluent/bin/fluent 3d -t$NCORES -cnf=$PBS_NODEFILE -g -i fluent.jou
 ```
 
-Header of the pbs file (above) is common and description can be find on [this site](salomon/resources-allocation-policy/). [SVS FEM](http://www.svsfem.cz) recommends to utilize sources by keywords: nodes, ppn. These keywords allows to address directly the number of nodes (computers) and cores (ppn) which will be utilized in the job. Also the rest of code assumes such structure of allocated resources.
+Header of the pbs file (above) is common and description can be find on [this site][1]. [SVS FEM][b] recommends to utilize sources by keywords: nodes, ppn. These keywords allows to address directly the number of nodes (computers) and cores (ppn) which will be utilized in the job. Also the rest of code assumes such structure of allocated resources.
 
 Working directory has to be created before sending pbs job into the queue. Input file should be in working directory or full path to input file has to be specified. Input file has to be defined by common Fluent journal file which is attached to the Fluent solver via parameter -i fluent.jou
 
@@ -160,3 +159,8 @@ ANSLIC_ADMIN Utility will be run
 ANSYS Academic Research license should be moved up to the top of the list.
 
 ![](../../../img/Fluent_Licence_4.jpg)
+
+[1]: ../../salomon/resources-allocation-policy.md
+
+[a]: http://www.ansys.com/products/fluids/ansys-fluent
+[b]: http://www.svsfem.cz
diff --git a/docs.it4i/software/tools/ansys/ansys-ls-dyna.md b/docs.it4i/software/tools/ansys/ansys-ls-dyna.md
index cdc14b1f42a86a0888e399a118a7a3bdeea3814f..26101dbde28a2e759454c80a9050c45052d0f2a6 100644
--- a/docs.it4i/software/tools/ansys/ansys-ls-dyna.md
+++ b/docs.it4i/software/tools/ansys/ansys-ls-dyna.md
@@ -1,6 +1,6 @@
 # ANSYS LS-DYNA
 
-**[ANSYSLS-DYNA](http://www.ansys.com/products/structures/ansys-ls-dyna)** software provides convenient and easy-to-use access to the technology-rich, time-tested explicit solver without the need to contend with the complex input requirements of this sophisticated program. Introduced in 1996, ANSYS LS-DYNA capabilities have helped customers in numerous industries to resolve highly intricate design issues. ANSYS Mechanical users have been able take advantage of complex explicit solutions for a long time utilizing the traditional ANSYS Parametric Design Language (APDL) environment. These explicit capabilities are available to ANSYS Workbench users as well. The Workbench platform is a powerful, comprehensive, easy-to-use environment for engineering simulation. CAD import from all sources, geometry cleanup, automatic meshing, solution, parametric optimization, result visualization and comprehensive report generation are all available within a single fully interactive modern graphical user environment.
+[ANSYSLS-DYNA][a] software provides convenient and easy-to-use access to the technology-rich, time-tested explicit solver without the need to contend with the complex input requirements of this sophisticated program. Introduced in 1996, ANSYS LS-DYNA capabilities have helped customers in numerous industries to resolve highly intricate design issues. ANSYS Mechanical users have been able take advantage of complex explicit solutions for a long time utilizing the traditional ANSYS Parametric Design Language (APDL) environment. These explicit capabilities are available to ANSYS Workbench users as well. The Workbench platform is a powerful, comprehensive, easy-to-use environment for engineering simulation. CAD import from all sources, geometry cleanup, automatic meshing, solution, parametric optimization, result visualization and comprehensive report generation are all available within a single fully interactive modern graphical user environment.
 
 To run ANSYS LS-DYNA in batch mode you can utilize/modify the default ansysdyna.pbs script and execute it via the qsub command.
 
@@ -50,6 +50,9 @@ echo Machines: $hl
 /ansys_inc/v145/ansys/bin/ansys145 -dis -lsdynampp i=input.k -machines $hl
 ```
 
-Header of the PBS file (above) is common and description can be find on [this site](anselm/job-submission-and-execution/). [SVS FEM](http://www.svsfem.cz) recommends to utilize sources by keywords: nodes, ppn. These keywords allows to address directly the number of nodes (computers) and cores (ppn) which will be utilized in the job. Also the rest of code assumes such structure of allocated resources.
+Header of the PBS file (above) is common and description can be find on [this site][1]. [SVS FEM][b] recommends to utilize sources by keywords: nodes, ppn. These keywords allows to address directly the number of nodes (computers) and cores (ppn) which will be utilized in the job. Also the rest of code assumes such structure of allocated resources.
 
-Working directory has to be created before sending PBS job into the queue. Input file should be in working directory or full path to input file has to be specified. Input file has to be defined by common LS-DYNA .**k** file which is attached to the ANSYS solver via parameter i=
+[1]: ../../anselm/job-submission-and-execution.md
+
+[a]: http://www.ansys.com/products/structures/ansys-ls-dyna
+[b]: http://www.svsfem.cz
diff --git a/docs.it4i/software/tools/ansys/ansys-mechanical-apdl.md b/docs.it4i/software/tools/ansys/ansys-mechanical-apdl.md
index c164437787b1ff777899fc12df7e9867bba96c31..eec5e07aa2d79ae74390bef6ba0e3af29a310a97 100644
--- a/docs.it4i/software/tools/ansys/ansys-mechanical-apdl.md
+++ b/docs.it4i/software/tools/ansys/ansys-mechanical-apdl.md
@@ -1,7 +1,6 @@
 # ANSYS MAPDL
 
-**[ANSYS Multiphysics](http://www.ansys.com/products/multiphysics)**
-software offers a comprehensive product solution for both multiphysics and single-physics analysis. The product includes structural, thermal, fluid and both high- and low-frequency electromagnetic analysis. The product also contains solutions for both direct and sequentially coupled physics problems including direct coupled-field elements and the ANSYS multi-field solver.
+[ANSYS Multiphysics][a] software offers a comprehensive product solution for both multiphysics and single-physics analysis. The product includes structural, thermal, fluid and both high- and low-frequency electromagnetic analysis. The product also contains solutions for both direct and sequentially coupled physics problems including direct coupled-field elements and the ANSYS multi-field solver.
 
 To run ANSYS MAPDL in batch mode you can utilize/modify the default mapdl.pbs script and execute it via the qsub command.
 
@@ -49,8 +48,13 @@ echo Machines: $hl
 /ansys_inc/v145/ansys/bin/ansys145 -b -dis -p aa_r -i input.dat -o file.out -machines $hl -dir $WORK_DIR
 ```
 
-Header of the PBS file (above) is common and description can be found on [this site](anselm/resources-allocation-policy/). [SVS FEM](http://www.svsfem.cz) recommends to utilize sources by keywords: nodes, ppn. These keywords allow to address directly the number of nodes (computers) and cores (ppn) which will be utilized in the job. Also the rest of code assumes such structure of allocated resources.
+Header of the PBS file (above) is common and description can be found on [this site][1]. [SVS FEM][b] recommends to utilize sources by keywords: nodes, ppn. These keywords allow to address directly the number of nodes (computers) and cores (ppn) which will be utilized in the job. Also the rest of code assumes such structure of allocated resources.
 
 Working directory has to be created before sending PBS job into the queue. Input file should be in working directory or full path to input file has to be specified. Input file has to be defined by common APDL file which is attached to the ANSYS solver via parameter -i
 
 **License** should be selected by parameter -p. Licensed products are the following: aa_r (ANSYS **Academic** Research), ane3fl (ANSYS Multiphysics)-**Commercial**, aa_r_dy (ANSYS **Academic** AUTODYN)
+
+[1]: ../../anselm/resources-allocation-policy.md
+
+[a]: http://www.ansys.com/products/multiphysics
+[b]: http://www.svsfem.cz
diff --git a/docs.it4i/software/tools/ansys/ansys.md b/docs.it4i/software/tools/ansys/ansys.md
index 66b8e6f0e13ab411a92e533dc16a6c37ba7b58b9..a5179eef2763540bcd2f5af0b4c10d338ac7e6c5 100644
--- a/docs.it4i/software/tools/ansys/ansys.md
+++ b/docs.it4i/software/tools/ansys/ansys.md
@@ -1,6 +1,6 @@
 # Overview of ANSYS Products
 
-**[SVS FEM](http://www.svsfem.cz/)** as **[ANSYS Channel partner](http://www.ansys.com/)** for Czech Republic provided all ANSYS licenses for ANSELM cluster and supports of all ANSYS Products (Multiphysics, Mechanical, MAPDL, CFX, Fluent, Maxwell, LS-DYNA...) to IT staff and ANSYS users. If you are challenging to problem of ANSYS functionality contact [hotline@svsfem.cz](mailto:hotline@svsfem.cz?subject=Ostrava%20-%20ANSELM)
+[SVS FEM][a] as [ANSYS Channel partner][b] for Czech Republic provided all ANSYS licenses for ANSELM cluster and supports of all ANSYS Products (Multiphysics, Mechanical, MAPDL, CFX, Fluent, Maxwell, LS-DYNA...) to IT staff and ANSYS users. If you are challenging to problem of ANSYS functionality contact [hotline@svsfem.cz][c].
 
 Anselm provides commercial as well as academic variants. Academic variants are distinguished by "**Academic...**" word in the name of license or by two letter preposition "**aa\_**" in the license feature name. Change of license is realized on command line respectively directly in user's PBS file (see individual products).
 
@@ -13,3 +13,7 @@ $ ml ansys
 ANSYS supports interactive regime, but due to assumed solution of extremely difficult tasks it is not recommended.
 
 If user needs to work in interactive regime we recommend to configure the RSM service on the client machine which allows to forward the solution to the Anselm directly from the client's Workbench project (see ANSYS RSM service).
+
+[a]: http://www.svsfem.cz/
+[b]: http://www.ansys.com/
+[c]: mailto:hotline@svsfem.cz?subject=Ostrava%20-%20ANSELM
diff --git a/docs.it4i/software/tools/ansys/ls-dyna.md b/docs.it4i/software/tools/ansys/ls-dyna.md
index 43c818c2cb0a6460b67a8cdb0da9ccda80671be2..561c015581c55ed49c370c6aaebb463ff893d721 100644
--- a/docs.it4i/software/tools/ansys/ls-dyna.md
+++ b/docs.it4i/software/tools/ansys/ls-dyna.md
@@ -1,6 +1,6 @@
 # LS-DYNA
 
-[LS-DYNA](http://www.lstc.com/) is a multi-purpose, explicit and implicit finite element program used to analyze the nonlinear dynamic response of structures. Its fully automated contact analysis capability, a wide range of constitutive models to simulate a whole range of engineering materials (steels, composites, foams, concrete, etc.), error-checking features and the high scalability have enabled users worldwide to solve successfully many complex problems. Additionally LS-DYNA is extensively used to simulate impacts on structures from drop tests, underwater shock, explosions or high-velocity impacts. Explosive forming, process engineering, accident reconstruction, vehicle dynamics, thermal brake disc analysis or nuclear safety are further areas in the broad range of possible applications. In leading-edge research LS-DYNA is used to investigate the behavior of materials like composites, ceramics, concrete, or wood. Moreover, it is used in biomechanics, human modeling, molecular structures, casting, forging, or virtual testing.
+[LS-DYNA][a] is a multi-purpose, explicit and implicit finite element program used to analyze the nonlinear dynamic response of structures. Its fully automated contact analysis capability, a wide range of constitutive models to simulate a whole range of engineering materials (steels, composites, foams, concrete, etc.), error-checking features and the high scalability have enabled users worldwide to solve successfully many complex problems. Additionally LS-DYNA is extensively used to simulate impacts on structures from drop tests, underwater shock, explosions or high-velocity impacts. Explosive forming, process engineering, accident reconstruction, vehicle dynamics, thermal brake disc analysis or nuclear safety are further areas in the broad range of possible applications. In leading-edge research LS-DYNA is used to investigate the behavior of materials like composites, ceramics, concrete, or wood. Moreover, it is used in biomechanics, human modeling, molecular structures, casting, forging, or virtual testing.
 
 Anselm provides **1 commercial license of LS-DYNA without HPC** support now.
 
@@ -30,6 +30,11 @@ ml lsdyna
 /apps/engineering/lsdyna/lsdyna700s i=input.k
 ```
 
-Header of the PBS file (above) is common and description can be find on [this site](anselm/job-submission-and-execution/). [SVS FEM](http://www.svsfem.cz) recommends to utilize sources by keywords: nodes, ppn. These keywords allows to address directly the number of nodes (computers) and cores (ppn) which will be utilized in the job. Also the rest of code assumes such structure of allocated resources.
+Header of the PBS file (above) is common and description can be find on [this site][1]. [SVS FEM][b] recommends to utilize sources by keywords: nodes, ppn. These keywords allows to address directly the number of nodes (computers) and cores (ppn) which will be utilized in the job. Also the rest of code assumes such structure of allocated resources.
 
-Working directory has to be created before sending PBS job into the queue. Input file should be in working directory or full path to input file has to be specified. Input file has to be defined by common LS-DYNA **.k** file which is attached to the LS-DYNA solver via parameter i=
+Working directory has to be created before sending PBS job into the queue. Input file should be in working directory or full path to input file has to be specified. Input file has to be defined by common LS-DYNA **.k** file which is attached to the LS-DYNA solver via parameter `i=`.
+
+[1]: ../../anselm/job-submission-and-execution.md
+
+[a]: http://www.lstc.com/
+[b]: http://www.svsfem.cz
diff --git a/docs.it4i/software/viz/gpi2.md b/docs.it4i/software/viz/gpi2.md
index f1df4a9334888414bae5cb02fa3b0904ff620534..96138f27a3af3d85966e0daec472c9eb9db8dc9b 100644
--- a/docs.it4i/software/viz/gpi2.md
+++ b/docs.it4i/software/viz/gpi2.md
@@ -4,7 +4,7 @@
 
 Programming Next Generation Supercomputers: GPI-2 is an API library for asynchronous interprocess, cross-node communication. It provides a flexible, scalable and fault tolerant interface for parallel applications.
 
-The GPI-2 library implements the GASPI specification (Global Address Space Programming Interface, [www.gaspi.de](http://www.gaspi.de/en/project.html)). GASPI is a Partitioned Global Address Space (PGAS) API. It aims at scalable, flexible and failure tolerant computing in massively parallel environments.
+The GPI-2 library implements the GASPI specification ([Global Address Space Programming Interface][a]). GASPI is a Partitioned Global Address Space (PGAS) API. It aims at scalable, flexible and failure tolerant computing in massively parallel environments.
 
 ## Modules
 
@@ -166,3 +166,5 @@ cn79 $ gaspi_logger
 ```
 
 In this example, we compile the helloworld_gpi.c code using the **gnu compiler**(gcc) and link it to the GPI-2 and ibverbs library. The library search path is compiled in. For execution, we use the qexp queue, 2 nodes 1 core each. The GPI module must be loaded on the master compute node (in this example the cn79), gaspi_logger is used from different session to view the output of the second process.
+
+[a]: http://www.gaspi.de/en/project.html
diff --git a/docs.it4i/software/viz/openfoam.md b/docs.it4i/software/viz/openfoam.md
index 96e7213a327c2137606e061d915ba3f5270b14b9..43b143acb01a7d1e87ecee4c13b13f537cab3c40 100644
--- a/docs.it4i/software/viz/openfoam.md
+++ b/docs.it4i/software/viz/openfoam.md
@@ -4,9 +4,7 @@ a Free, Open Source CFD Software Package
 
 ## Introduction
 
-OpenFOAM is a free, open source CFD software package developed by [**OpenCFD Ltd**](http://www.openfoam.com/about) at [**ESI Group**](http://www.esi-group.com/) and distributed by the [**OpenFOAM Foundation **](http://www.openfoam.org/). It has a large user base across most areas of engineering and science, from both commercial and academic organisations.
-
-Homepage: [http://www.openfoam.com/>](http://www.openfoam.com/>)
+[OpenFOAM][a] is a free, open source CFD software package developed by [OpenCFD Ltd][b] at [ESI Group][c] and distributed by the [OpenFOAM Foundation][d]. It has a large user base across most areas of engineering and science, from both commercial and academic organisations.
 
 ### Installed Version
 
@@ -45,7 +43,7 @@ In /opt/modules/modulefiles/engineering you can see installed engineering softwa
     lsdyna/7.x.x               openfoam/2.2.1-gcc481-openmpi1.6.5-SP
 ```
 
-For information how to use modules [look here](environment-and-modules/).
+For information how to use modules look [here][1].
 
 ## Getting Started
 
@@ -112,7 +110,7 @@ Job submission (example for Anselm):
 $ qsub -A OPEN-0-0 -q qprod -l select=1:ncpus=16,walltime=03:00:00 test.sh
 ```
 
-For information about job submission [look here](anselm/job-submission-and-execution/).
+For information about job submission look [here][2].
 
 ## Running Applications in Parallel
 
@@ -228,3 +226,11 @@ In directory My_icoFoam give the compilation command:
 ```console
 $ wmake
 ```
+
+[1]: ../../environment-and-modules.md
+[2]: ../../anselm/job-submission-and-execution.md
+
+[a]: http://www.openfoam.com/
+[b]: http://www.openfoam.com/about
+[c]: http://www.esi-group.com/
+[d]: http://www.openfoam.org/
diff --git a/docs.it4i/software/viz/paraview.md b/docs.it4i/software/viz/paraview.md
index f425989b2b331cd7b5794e8f7a7b4c2a8250595e..20dd88a98bd5155a8fe7e7c2dcc991b33bcf0aa7 100644
--- a/docs.it4i/software/viz/paraview.md
+++ b/docs.it4i/software/viz/paraview.md
@@ -4,19 +4,17 @@ Open-Source, Multi-Platform Data Analysis and Visualization Application
 
 ## Introduction
 
-**ParaView** is an open-source, multi-platform data analysis and visualization application. ParaView users can quickly build visualizations to analyze their data using qualitative and quantitative techniques. The data exploration can be done interactively in 3D or programmatically using ParaView's batch processing capabilities.
+[ParaView][a] is an open-source, multi-platform data analysis and visualization application. ParaView users can quickly build visualizations to analyze their data using qualitative and quantitative techniques. The data exploration can be done interactively in 3D or programmatically using ParaView's batch processing capabilities.
 
 ParaView was developed to analyze extremely large datasets using distributed memory computing resources. It can be run on supercomputers to analyze datasets of exascale size as well as on laptops for smaller data.
 
-Homepage : [http://www.paraview.org/](http://www.paraview.org/)
-
 ## Installed Version
 
 Currently, version 5.1.2 compiled with intel/2017a against intel MPI library and OSMesa 12.0.2 is installed on the clusters.
 
 ## Usage
 
-On the clusters, ParaView is to be used in client-server mode. A parallel ParaView server is launched on compute nodes by the user, and client is launched on your desktop PC to control and view the visualization. Download ParaView client application for your OS [here](http://paraview.org/paraview/resources/software.php).
+On the clusters, ParaView is to be used in client-server mode. A parallel ParaView server is launched on compute nodes by the user, and client is launched on your desktop PC to control and view the visualization. Download ParaView client application for your OS [here][b].
 
 !!!Warning
     Your version must match the version number installed on the cluster.
@@ -29,7 +27,7 @@ To launch the server, you must first allocate compute nodes, for example
 $ qsub -I -q qprod -A OPEN-0-0 -l select=2
 ```
 
-to launch an interactive session on 2 nodes. Refer to [Resource Allocation and Job Execution](salomon/job-submission-and-execution/) for details.
+to launch an interactive session on 2 nodes. Refer to [Resource Allocation and Job Execution][1] for details.
 
 After the interactive session is opened, load the ParaView module (following examples for Salomon, Anselm instructions in comments):
 
@@ -86,3 +84,8 @@ You can now use Parallel ParaView.
 ### Close Server
 
 Remember to close the interactive session after you finish working with ParaView server, as it will remain launched even after your client is disconnected and will continue to consume resources.
+
+[1]: ../../salomon/job-submission-and-execution.md
+
+[a]: http://www.paraview.org/
+[b]: http://paraview.org/paraview/resources/software.php