Licence footer
Copied from the GRO.publications footer was the following statement: "Except where otherwise noted, content on this site is licensed under a Creative Commons Attribution 4.0 International license."
RDMO catalogs, which are one main content of the service are licensed CC0: https://github.com/rdmorganiser/rdmo-catalog/blob/master/LICENSE
Perhaps it makes sense to change our licence foooter to reflect this.