Fix the "OpenStack CLI guide" link
Fix the "OpenStack CLI guide" link

The "OpenStack CLI guide" link with a nonexistent target.
This patch fixes it.

Change-Id: I326eb532d177b611fa09f92221d435a9efb6df76

openstack/python-troveclient,Tesora/tesora-python-troveclient,Tesora/tesora-python-troveclient,openstack/python-troveclient