Document "topic" parameter for the "List group projects" API endpoint
Problem to solve
For the Group List Projects API, there appears to be an undocumented parameter: topic.
Further details
For example, an API call like:
curl --header "PRIVATE-TOKEN: <your_access_token>" "https://gitlab.com/api/v4/groups/<your_group>/projects?topic=container"does seem to limit the results to projects that have the "container" topic, even though the topic parameter is not present in the documentation.
Proposal
Add documentation for the topic parameter.