Updated openstack/openstack
Project: openstack/python-keystoneclient  c0432e645510ffcd5081421001ff1360ef1ab888
null
Add link to the v3 client api doc

There was no link from the main page to the v3 client API doc so
there's no easy way to get to it or to know that it's there. This
adds the link.

Change-Id: I3fd49eedcf7b79f6d810ed22cfcffba4ce47dece