Update vnc.md

docs.it4i/general/accessing-the-clusters/graphical-user-interface/vnc.md

@@ -227,10 +227,10 @@ Open a Terminal (_Applications -> System Tools -> Terminal_). Run all the follow
 
 Allow incoming X11 graphics from the compute nodes at the login node:
 
-Get an interactive session on a compute node (for more detailed info [look here][4]). Forward X11 system using `X` option:
+Get an interactive session on a compute node (for more detailed info [look here][4]). Forward X11 system using `--x11` option:
 
 ```console
-$ qsub -I -X -A PROJECT_ID -q qprod -l select=1:ncpus=36
+$ salloc -A PROJECT_ID -q qcpu --x11
 ```
 
 Test that the DISPLAY redirection into your VNC session works, by running an X11 application (e.g. XTerm, Intel Advisor, etc.) on the assigned compute node:
@@ -249,10 +249,10 @@ For a [better performance][1] an SSH connection can be used.
 
 Open two Terminals  (_Applications -> System Tools -> Terminal_) as described before.
 
-Get an interactive session on a compute node (for more detailed info [look here][4]). Forward X11 system using `X` option:
+Get an interactive session on a compute node (for more detailed info [look here][4]). Forward X11 system using `--x11` option:
 
 ```console
-$ qsub -I -X -A PROJECT_ID -q qprod -l select=1:ncpus=36
+$ salloc -A PROJECT_ID -q qcpu --x11
 ```
 
 In the second terminal connect to the assigned node and run the X11 application
@@ -273,4 +273,4 @@ The example described above:
 [1]: x-window-system.md
 [2]: #linuxmac-os-example-of-creating-a-tunnel
 [3]: #windows-example-of-creating-a-tunnel
-[4]: ../../job-submission-and-execution.md
+[4]: ../../slurm-job-submission-and-execution.md