Finishing documentation
diff --git a/openstack/networking/v2/ports/doc.go b/openstack/networking/v2/ports/doc.go
index 808de88..f16a4bb 100644
--- a/openstack/networking/v2/ports/doc.go
+++ b/openstack/networking/v2/ports/doc.go
@@ -1 +1,8 @@
+// Package ports contains functionality for working with Neutron port resources.
+// A port represents a virtual switch port on a logical network switch. Virtual
+// instances attach their interfaces into ports. The logical port also defines
+// the MAC address and the IP address(es) to be assigned to the interfaces
+// plugged into them. When IP addresses are associated to a port, this also
+// implies the port is associated with a subnet, as the IP address was taken
+// from the allocation pool for a specific subnet.
package ports