Added Oxford Comma!

Signed-off-by: Abhishek Kumar Singh <[email protected]>

Author: toanant

docs/scenarios/admin.rst

@@ -384,10 +384,10 @@ Shinken
 -------
 
 `Shinken <http://www.shinken-monitoring.org/>`_ is a modern, Nagios compatible
-monitoring framework written in Python.Its main goal is to give users a flexible
+monitoring framework written in Python. Its main goal is to give users a flexible
 architecture for their monitoring system that is designed to scale to large
 environments.
 
-Shinken is backwards-compatible with the Nagios configuration standard and
-plugins.It works on any operating system and architecture that supports Python
-which includes Windows, GNU/Linux and FreeBSD.
+Shinken is backwards-compatible with the Nagios configuration standard, and
+plugins.It works on any operating system, and architecture that supports Python
+which includes Windows, GNU/Linux, and FreeBSD.