Add XFCE note

README.md

@@ -40,6 +40,10 @@ run `PlugInstall`.
 
 Make sure you run `./install.py --all` in the YouCompleteMe Directory. Additionally you will want to run:
 
+To rebind capslock and escape in XFCE paste the following command in your terminal:
+
+`/usr/bin/setxkbmap -option "caps:swapescape"`
+
 ```
 pip install pynvim
 ```