There is a gap in Package Maintainers documentation at https://docs.fedoraproject.org/en-US/package-maintainers/. It would be helpful to write up some common tasks for using Pagure from a package maintainer's perspective. For example, a common task is adding/removing users as package admins. At a bare minimum, there should be a link to this documentation:
https://docs.pagure.org/pagure/usage/project_acls.html . Better would be to have a description of how to request to become a package co-maintainer and how the main admin of a package would fulfill such a request.