Recommend packaging-problems for support

Author: bhrutledge

source/support.rst

@@ -5,6 +5,7 @@ How to Get Support
 For support related to a specific project, see the links on the :doc:`Projects
 <key_projects>` page.
 
-For something more general, or when you're just not sure, use the `Python
-Packaging Discourse forum <https://discuss.python.org/c/packaging/>`_ or the
-`distutils-sig <http://mail.python.org/mailman/listinfo/distutils-sig>`_ list.
+For something more general, or when you're just not sure, please
+`open an issue <https://github.com/pypa/packaging-problems/issues/new>`_ on
+the `packaging-problems <https://github.com/pypa/packaging-problems>`_
+repository on GitHub.