updated display name to single word.

Author: anistark

_data/authors.yml

@@ -51,7 +51,7 @@ krace:
 
 rahul:
   name: Rahul Kumaresan
-  display_name: Rahul Kumaresan
+  display_name: Rahul
   logo: https://s.gravatar.com/avatar/199fbad24bc5db74968f668aa16f4e02?s=80
   email: kayrahul@gmail.com
-  twitter: https://twitter.com/RahulKumaresan/
+  twitter: https://twitter.com/RahulKumaresan/