The support page is the go-to page for the "how to get help" question,
which previously was hidden inside the TPA-RFC-2 standard.

This basically copies that part of the TPA-RFC-2 policy, but could
eventually diverge without needing to update the policy, for informal
stuff.

I started working on this page while trying to address
#40382 ("document the triage process"), but I'm not
actually sure triage documentation should go there, as this page feels
more targeted at users, and only users.

howto/incident-response.md would seem like a better space for this.

Also, this is a toplevel page because it's more important than
everything else, so it warrants its own special space.

home.md

@@ -8,7 +8,7 @@ accounts.
 
 The documentation is split into the following sections:
 
- * [How to get help!](policy/tpa-rfc-2-support#how-to-get-help) - in case of fire, press this button
+ * [Support](support) - in case of fire, press this button
  * [User documentation](doc) - aimed primarily at non-technical users
    and the general public
  * [Sysadmin how-to's](howto) - procedures specifically written for sysadmins
@@ -31,4 +31,4 @@ This is a wiki. We welcome changes to the content!  If you have the
 right permissions -- which is [actually unlikely, unfortunately](https://gitlab.torproject.org/tpo/tpa/gitlab/-/issues/76) --
 you can edit the wiki in GitLab directly. Otherwise you can submit a
 [pull request]() on the [wiki replica](https://gitlab.torproject.org/tpo/tpa/wiki-replica). You can also [clone the git
-repository](https://gitlab.torproject.org/tpo/tpa/team/-/wikis/git_access) and [send us a patch by email](policy/tpa-rfc-2-support#how-to-get-help).
+repository](https://gitlab.torproject.org/tpo/tpa/team/-/wikis/git_access) and [send us a patch by email](support).