Allow admins to offer a download link in order to obey the AGPLv3 license
This project uses the AGPLv3 license. If an admin decides to make some adaptions to the source code, the admin is required to offer the servers users a download of the source code of his version (see https://www.gnu.org/licenses/why-affero-gpl.html).
To do so he should be able to add some link, e.g. to the footer.