removed H1 GUI Access

mkdocs.yml

@@ -18,8 +18,7 @@ pages:
     - Pageant SSH agent: get-started-with-it4innovations/accessing-the-clusters/shell-access-and-data-transfer/pageant.md
     - PuTTY key generator: get-started-with-it4innovations/accessing-the-clusters/shell-access-and-data-transfer/puttygen.md
     - PuTTY: get-started-with-it4innovations/accessing-the-clusters/shell-access-and-data-transfer/putty.md
-  - GUI Access:
-    - Introduction: get-started-with-it4innovations/accessing-the-clusters/graphical-user-interface/graphical-user-interface.md
+    - GUI Access: get-started-with-it4innovations/accessing-the-clusters/graphical-user-interface/graphical-user-interface.md
     - X Window System: get-started-with-it4innovations/accessing-the-clusters/graphical-user-interface/x-window-system.md
     - VNC: get-started-with-it4innovations/accessing-the-clusters/graphical-user-interface/vnc.md
     - Cygwin and x11 Forwarding: get-started-with-it4innovations/accessing-the-clusters/graphical-user-interface/cygwin-and-x11-forwarding.md