Doc Update: Fix formatting for inclusion of README.rst
Doc Update: Fix formatting for inclusion of README.rst

The contents of README.rst are included directly into the documentation
index file, as a result we need to alter the formatting to align with
the existing contents.

Change-Id: I631b664f1eba8838f39b2315ec3b70a87b5d06de

Puneeth-n/python-jenkins,stackforge/python-jenkins,klmitch/python-jenkins,yershalom/python-jenkins