Rename to general and anselm

.../software/numerical-libraries/magma-for-intel-xeon-phi.md

docs.it4i/anselm/software/numerical-libraries/petsc.md

docs.it4i/anselm/software/numerical-libraries/trilinos.md

docs.it4i/anselm/software/nvidia-cuda.md

...anselm/software/omics-master/diagnostic-component-team.md

docs.it4i/anselm/software/omics-master/overview.md

...m/software/omics-master/priorization-component-bierapp.md

docs.it4i/anselm/software/openfoam.md

docs.it4i/anselm/software/operating-system.md

docs.it4i/anselm/software/paraview.md

docs.it4i/anselm/storage.md

...ters/graphical-user-interface/graphical-user-interface.md

...al/accessing-the-clusters/graphical-user-interface/vnc.md

...-the-clusters/graphical-user-interface/x-window-system.md

docs.it4i/general/accessing-the-clusters/introduction.md

...sing-the-clusters/shell-access-and-data-transfer/putty.md

...g-the-clusters/shell-access-and-data-transfer/ssh-keys.md

...ccess-and-data-transfer/vpn-connection-fail-in-win-8.1.md

docs.it4i/general/accessing-the-clusters/vpn-access.md

docs.it4i/general/accessing-the-clusters/vpn1-access.md