Fix font name and text format in README

DejaVuSansMono for Powerline --> Liberation Mono for Powerline

LiberationMono/README.rst

@@ -1,9 +1,9 @@
-DejaVuSansMono for Powerline
-============================
+Liberation Mono for Powerline
+=============================
 
 :Font creator: Steve Mattesen
 :Version: 2.00.1
 :Source: https://fedorahosted.org/liberation-fonts/
 :License: SIL OPEN FONT LICENSE Version 1.1
-:Patched by: `Dan Savilonis <https://github.com/djs>`
+:Patched by: `Dan Savilonis <https://github.com/djs>`_