Adding ListAPIVersions operation
diff --git a/openstack/networking/v2/networks/urls.go b/openstack/networking/v2/networks/urls.go
index e69de29..012e486 100644
--- a/openstack/networking/v2/networks/urls.go
+++ b/openstack/networking/v2/networks/urls.go
@@ -0,0 +1,9 @@
+package networks
+
+import (
+	"github.com/rackspace/gophercloud"
+)
+
+func APIVersionsURL(c *gophercloud.ServiceClient) string {
+	return c.ServiceURL("")
+}