Changed the home-page to point Openstack Puppet Homepage

Change-Id: I932e862ffd28824400be8e28ecb360d1d0bb5c87
Closes-Bug: #1629876

Author: sharat-sharma

setup.cfg

@@ -5,7 +5,7 @@ description-file =
     README.md
 author = Puppet Labs and OpenStack Contributors
 author-email = openstack-dev@lists.openstack.org
-home-page = http://www.openstack.org/
+home-page = http://docs.openstack.org/developer/puppet-openstack-guide
 classifier =
     Intended Audience :: Developers
     Intended Audience :: System Administrators