Added :: to readme.rst to format correctly.
Added :: to readme.rst to format correctly.

Also zapped a trailing bit of whitespace

Change-Id: I49d0306c0e73f096d091c27ba54705d9dbe9c0ca

derekchiang/python-openstackclient,derekchiang/python-openstackclient,redhat-openstack/python-openstackclient,redhat-openstack/python-openstackclient,varunarya10/python-openstackclient,hughsaunders/python-openstackclient,dtroyer/python-openstackclient,citrix-openstack-build/python-openstackclient,dtroyer/python-openstackclient,openstack/python-openstackclient,openstack/python-openstackclient,varunarya10/python-openstackclient,metacloud/python-openstackclient,BjoernT/python-openstackclient,metacloud/python-openstackclient,hughsaunders/python-openstackclient,citrix-openstack-build/python-openstackclient,BjoernT/python-openstackclient