Adds missing option to GCENodeDriver.ex_create_route() documentation
Closes
@@ -3480,7 +3480,8 @@ class GCENodeDriver(NodeDriver):
:type priority: ``int``
:param network: The network the route belongs to. Can be either the
- full URL of the network or a libcloud object.
+ full URL of the network, the name of the network or
+ a libcloud object.
:type network: ``str`` or ``GCENetwork``
:param tags: List of instance-tags for routing, empty for all nodes
