fix links

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 ([www.gpi-site.com/gpi2/](http://www.gpi-site.com/gpi2/)) 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, [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.
 
 ## Modules
 

docs.it4i/software/viz/openfoam.md

@@ -45,7 +45,7 @@ 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 please [look here](../anselm/environment-and-modules/).
+For information how to use modules please [look here](../../environment-and-modules/).
 
 ## Getting Started
 
@@ -111,7 +111,7 @@ 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 please [look here](../anselm/job-submission-and-execution/).
+For information about job submission please [look here](../../anselm/job-submission-and-execution/).
 
 ## Running Applications in Parallel