References in debusine-*.service and manual to documentation is broken

systemd service files

debian/debusine-server.service contains:

Documentation=file:///usr/share/doc/debusine-doc/html/admin/debusine-server.html https://freexian-team.pages.debian.net/debusine/admin/debusine-server.html

Similar in debusine-worker.service.

The files referred there do not exist (they should exist in the debusine-doc package, but we restructured the documentation)

Manual pages

Similar issues with docs/manpages/* which refer to non-existing HTML documentation files.