Update 13 files

• /docs.it4i/img/blender2.png
• /docs.it4i/img/blender.png
• /docs.it4i/img/blender1.png
• /docs.it4i/img/gpu.png
• /docs.it4i/img/mount.png
• /docs.it4i/img/paraview.png
• /docs.it4i/img/paraview1.png
• /docs.it4i/img/paraview2.png
• /docs.it4i/img/sshfs.png
• /docs.it4i/img/sshfs1.png
• /docs.it4i/img/sshfs2.png
• /docs.it4i/img/vmware.png
• /docs.it4i/cs/guides/horizon.md

added documentation label

assigned to @siw019

mentioned in commit 965a2b70

merged