Add note to pdnsutil manpage on how to remove zone from catalog zone
pdnsutil set-catalog example.com catalog.example
Setting catalog values is supported in the :doc:`API <http-api/zone>`, by setting the ``catalog`` property in the zone properties.
+ Setting the catalog to an empty ``""`` removes the member zone from the catalog it is in.
-Each member zone may have one or more additional properties as defined in the draft.
+Each member zone may have one or more additional properties as defined in the RFC.
PowerDNS currently supports the following properties:
- coo - A single DNSName