Add screenshot for shortcut keys.

source/3/3.2/3.2.14/shortcut_keys.rst

@@ -13,6 +13,10 @@ To change a current keyboard shortcut to change things look at the menu click on
 
 To create a new keyboard shortcut press the create button. The shortcut field will be blank but when you click the shortcut button a countdown will begin and then press the keyboard shorcut you want to assign it to. The summary field lets you enter a summary of the command useful so you know what this shortcut you created does in the future. To make this execute a terminal command press the terminal command radio button and enter the command in the radio button at the bottom.
 
+Screenshot
+----------
+.. image:: shortcut_keys.png
+
 How to launch
 -------------
 To launch shortcut keys from the menu -> Prefrences -> LXQt settings -> shortcut keys. From LXQt configuration center use shortcut keys button which looks like 6 keyboard keys or run lxqt-config-globalkeyshortcuts.