Doc fix: use_floating_ip to use_floating_ips
Doc fix: use_floating_ip to use_floating_ips

Change-Id: Ibaab6441a1ab6a3e974081ead45ef87f4a78fb33

egafford/sahara,tellesnobrega/sahara,openstack/sahara,openstack/sahara,tellesnobrega/sahara,egafford/sahara