more readme updates

Author: OriolAbril

README.rst

@@ -234,6 +234,8 @@ Contact
 We are using `discourse.pymc.io <https://discourse.pymc.io/>`__ as our main communication channel.
 
 To ask a question regarding modeling or usage of PyMC we encourage posting to our Discourse forum under the `“Questions” Category <https://discourse.pymc.io/c/questions>`__. You can also suggest feature in the `“Development” Category <https://discourse.pymc.io/c/development>`__.
+Requests for non-technical information about the project are also welcome on Discourse,
+we also use Discourse internally for general announcements or governance related processes.
 
 You can also follow us on these social media platforms for updates and other announcements:
 
@@ -244,8 +246,6 @@ You can also follow us on these social media platforms for updates and other ann
 
 To report an issue with PyMC please use the `issue tracker <https://github.com/pymc-devs/pymc/issues>`__.
 
-Finally, if you need to get in touch for non-technical information about the project, `send us an e-mail <info@pymc-devs.org>`__.
-
 License
 =======
 
@@ -283,8 +283,13 @@ See Google Scholar `here <https://scholar.google.com/scholar?cites=6357998555684
 Contributors
 ============
 
-See the `GitHub contributor
-page <https://github.com/pymc-devs/pymc/graphs/contributors>`__. Also read our `Code of Conduct <https://github.com/pymc-devs/pymc/blob/main/CODE_OF_CONDUCT.md>`__ guidelines for a better contributing experience.
+The `GitHub contributor page <https://github.com/pymc-devs/pymc/graphs/contributors>`__ shows the people who have added content to this repo
+which includes a large portion of contributors to the PyMC project but not all of them. Other
+contributors have added content to other repos of the `pymc-devs` GitHub organization or have contributed
+through other project spaces outside of GitHub like `our Discourse forum <https://discourse.pymc.io/>`__.
+
+If you are interested in contributing yourself, read our `Code of Conduct <https://github.com/pymc-devs/pymc/blob/main/CODE_OF_CONDUCT.md>`__
+and `Contributing guide <https://www.pymc.io/projects/docs/en/latest/contributing/index.html>`__.
 
 Support
 =======