Sourceware forge experiment

As an experiment Sourceware is now running an forgejo v9 instance at
https://forge.sourceware.org

Everybody with an @sourceware.org, @cygwin.com or @gcc.gnu.org address
can register an account (please use the same user name as your account
name).

The setup has disabled most "extras" (no badges, stars, issues, wikis,
packages, timetracking, milestones, etc.). And users can only fork
existing repos (it has mirrors of various sourceware projects). Some
things haven't been setup yet (external trackers/bugzilla, incoming
email, ci, etc.)

The full setup can be found in this git repository:
https://sourceware.org/cgit/forge/

For now it is only open for existing maintainers/developers for
experimentating with a pull-request model. We can add others as long
as they understand this is an experiment and does not mean projects
are accepting patches through it. Contributions should still be sent
through the mailinglists.

There is also a new mailinglist for discussion about the setup and the
best way to create a pull-request workflow. Please subscribe if you
create an account and mention which project/organization you would
like do some experiments for. We can then add you to that organization.

https://sourceware.org/mailman/listinfo/forge