pythonGH-101616: Mention the Docs Discourse forum in the "reporting d…

…ocs issues" (pythonGH-101617)

Fixes python#101616
(cherry picked from commit 949c58f)

Co-authored-by: Mariatta Wijaya <Mariatta@users.noreply.github.com>

Doc/bugs.rst

@@ -19,6 +19,9 @@ If you find a bug in this documentation or would like to propose an improvement,
 please submit a bug report on the :ref:`tracker <using-the-tracker>`.  If you
 have a suggestion on how to fix it, include that as well.
 
+You can also open a discussion item on our
+`Documentation Discourse forum <https://discuss.python.org/c/documentation/26>`_.
+
 If you're short on time, you can also email documentation bug reports to
 docs@python.org (behavioral bugs can be sent to python-list@python.org).
 'docs@' is a mailing list run by volunteers; your request will be noticed,