Update community comms info (#712)

As a part of the [Consolidating Ansible discussion platforms
initiative](https://forum.ansible.com/t/proposal-consolidating-ansible-discussion-platforms/6812),
this PR adds the communication section template defined by the community
to the README and the docsite. Similar PRs are now being raised across
all the Ansible ecosystem projects.

Thanks!

README.rst

@@ -67,15 +67,16 @@ Documentation
 ===============
 Please refer to the `Getting Started guide <https://ansible-rulebook.readthedocs.io/en/stable/getting_started.html>`_ to get started with ``ansible-rulebook``.
 
-
 ===============
 Contributing
 ===============
 We ask all of our community members and contributors to adhere to the `Ansible code of conduct <https://docs.ansible.com/ansible/latest/community/code_of_conduct.html>`_.
 If you have questions or need assistance, please reach out to our community team at [email protected]
 
-Refer to the Contributing guide to get started developing, reporting bugs or providing feedback.
+Refer to the `Contributing guide <https://ansible.readthedocs.io/projects/rulebook/en/stable/contributing.html>`_ to get started developing, reporting bugs or providing feedback.
 
+To find out how to join the community and get in touch, see the `Community <https://ansible.readthedocs.io/projects/rulebook/en/stable/contributing.html#community>`_ section of our docs.
+You can also find more information in the `Ansible communication guide <https://docs.ansible.com/ansible/devel/community/communication.html>`_.
 
 Credits
 -------

docs/contributing.rst

@@ -5,11 +5,26 @@ Contributing
 Contributions are welcome, and they are greatly appreciated! Every little bit
 helps, and credit will always be given.
 
-You can contribute in many ways:
+Getting in touch
+----------------
+
+Join the `Ansible Forum <https://forum.ansible.com>`_, the default communication platform for questions and help, development discussions, events, and much more.
+`Register <https://forum.ansible.com/signup?>`_ to join the community.
+Search by categories and tags to find interesting topics or start a new one; subscribe only to topics you need!
+
+* `Get Help <https://forum.ansible.com/c/help/6>`_: get help or help others. Please add appropriate tags if you start new discussions, for example `ansible-rulebook`.
+* `Posts tagged with 'ansible-rulebook' <https://forum.ansible.com/tag/ansible-rulebook>`_: subscribe to participate in project-related conversations.
+* `Bullhorn newsletter <https://docs.ansible.com/ansible/devel/community/communication.html#the-bullhorn>`_: used to announce releases and important changes.
+* `Social Spaces <https://forum.ansible.com/c/chat/4>`_: gather and interact with fellow enthusiasts.
+* `News & Announcements <https://forum.ansible.com/c/news/5>`_: track project-wide announcements including social events.
+
+See `Navigating the Ansible forum <https://forum.ansible.com/t/navigating-the-ansible-forum-tags-categories-and-concepts/39>`_ for some practical advice on finding your way around.
 
 Types of Contributions
 ----------------------
 
+You can contribute in many ways:
+
 Report Bugs
 ~~~~~~~~~~~
 
@@ -27,8 +42,6 @@ Fix Bugs
 Look through the GitHub issues for bugs. Anything tagged with "bug" and "help
 wanted" is open to whoever wants to implement it.
 
-
-
 Implement Features
 ~~~~~~~~~~~~~~~~~~
 
@@ -67,7 +80,3 @@ If you are proposing a feature:
 * Keep the scope as narrow as possible, to make it easier to implement.
 * Remember that this is a volunteer-driven project, and that contributions
   are welcome :)
-
-
-Also you can check the `Matrix chat <https://matrix.to/#/#eda:ansible.com>`__, or via the
-[email protected] email.