Adding TOC

Author: it33

source/install/desktop.rst

@@ -4,7 +4,10 @@ Desktop Application Install Guides
 
 Mattermost desktop applications are available for Windows, Mac and Linux operation systems. 
 
-They support all the features of the web experience, plus: 
+.. contents::
+    :backlinks: top
+
+Desktop application support all the features of the web experience, plus: 
 
 - Connect to multiple Mattermost servers from a single interface, and switch with shortcut keys.
 - Auto-start Mattermost when a user logs into their machine