Minor updates to openstack doc
Minor updates to openstack doc

Change-Id: I5097f2d911597c2c97b1564f62d0ba5a08538a5b
Signed-off-by: Sam Hague <0bd82f91a319b8977788d8264eb020ecd4ace960@redhat.com>

opendaylight/netvirt,opendaylight/netvirt,opendaylight/netvirt,opendaylight/netvirt,opendaylight/netvirt