diff --git a/docs.it4i/anselm-cluster-documentation/software/numerical-libraries/petsc.md b/docs.it4i/anselm-cluster-documentation/software/numerical-libraries/petsc.md
index 8cdcd2b8e57550ccc2a5baeedc71835950121aee..3be05fe85a496fb88fa8cabf153b8b715a481100 100644
--- a/docs.it4i/anselm-cluster-documentation/software/numerical-libraries/petsc.md
+++ b/docs.it4i/anselm-cluster-documentation/software/numerical-libraries/petsc.md
@@ -25,7 +25,7 @@ You can start using PETSc on Anselm by loading the PETSc module. Module names ob
       module load petsc/3.4.4-icc-impi-mkl-opt
 ```
 
-where `variant` is replaced by one of `{dbg, opt, threads-dbg, threads-opt}`. The `opt` variant is compiled without debugging information (no `-g` option) and with aggressive compiler optimizations (`-O3 -xAVX`). This variant is suitable for performance measurements and production runs. In all other cases use the debug (`dbg`) variant, because it contains debugging information, performs validations and self-checks, and provides a clear stack trace and message in case of an error. The other two variants `threads-dbg` and `threads-opt` are `dbg` and `opt`, respectively, built with [OpenMP and pthreads threading support](http://www.mcs.anl.gov/petsc/features/threads.html).
+where `variant` is replaced by one of `{dbg, opt, threads-dbg, threads-opt}`. The `opt` variant is compiled without debugging information (no `-g` option) and with aggressive compiler optimizations (`-O3 -xAVX`). This variant is suitable for performance measurements and production runs. In all other cases use the debug (`dbg`) variant, because it contains debugging information, performs validations and self-checks, and provides a clear stack trace and message in case of an error. The other two variants `threads-dbg` and `threads-opt` are `dbg` and `opt`, respectively, built with [OpenMP and pthreads threading support](https://www.mcs.anl.gov/petsc/miscellaneous/petscthreads.html).
 
 External libraries
 ------------------
@@ -57,6 +57,6 @@ All these libraries can be used also alone, without PETSc. Their static or share
     -   [ParMETIS](http://glaros.dtc.umn.edu/gkhome/metis/parmetis/overview)
     -   [PT-Scotch](http://www.labri.fr/perso/pelegrin/scotch/)
 -   preconditioners & multigrid
-    -   [Hypre](http://acts.nersc.gov/hypre/)
+    -   [Hypre](http://www.nersc.gov/users/software/programming-libraries/math-libraries/petsc/)
     -   [Trilinos ML](http://trilinos.sandia.gov/packages/ml/)
     -   [SPAI - Sparse Approximate Inverse](https://bitbucket.org/petsc/pkg-spai)
diff --git a/docs.it4i/anselm-cluster-documentation/software/omics-master/priorization-component-bierapp.md b/docs.it4i/anselm-cluster-documentation/software/omics-master/priorization-component-bierapp.md
index 8b5cb8cf6ae3cdf00649ea640ec417920d3ad76c..3c2c24cd07fb3e995fb86ed7798f2131fb853e91 100644
--- a/docs.it4i/anselm-cluster-documentation/software/omics-master/priorization-component-bierapp.md
+++ b/docs.it4i/anselm-cluster-documentation/software/omics-master/priorization-component-bierapp.md
@@ -3,7 +3,7 @@ Prioritization component (BiERapp)
 
 ### Access
 
-BiERapp is available at the following address: <http://omics.it4i.cz/bierapp/>
+BiERapp is available at the [following address](http://omics.it4i.cz/bierapp/)
 
 !!! Note "Note"
 	The address is accessible onlyvia VPN.