Update vnc.md

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

@@ -244,7 +244,8 @@ The example described above:
 ![](../../img/node_gui_xwindow.png)
 
 ### GUI Over VNC and SSH
-For the [better performance][1] an ssh connection can be used. 
+
+For a [better performance][1] an SSH connection can be used.
 
 Open two Terminals  (_Applications -> System Tools -> Terminal_) as described before.
 
@@ -261,11 +262,9 @@ $ ssh -X node_name.barbora.it4i.cz
 $ xterm
 ```
 
-
 The example described above:
 ![](../../img/node_gui_sshx.png)
 
-
 [b]: http://www.tightvnc.com
 [c]: http://sourceforge.net/apps/mediawiki/tigervnc/index.php?title=Main_Page
 [d]: http://docs.microsoft.com/en-us/windows/wsl