Fixed unknown target name errors (#390)

* added target

* removed whitespace

* remove google group

* replace mdnalysis-discussion with github discussion

* Update doc/source/index.rst

Co-authored-by: Rocco Meli <[email protected]>

* Update doc/source/index.rst

Co-authored-by: Rocco Meli <[email protected]>

---------

Co-authored-by: Rocco Meli <[email protected]>

Author: mhmohona

doc/source/contributing.rst

@@ -85,8 +85,8 @@ Getting started with Git
 setting up your SSH key, and configuring git.  All these steps need to be completed before
 you can work seamlessly between your local repository and GitHub.
 
-.. _`mdnalysis-discussion`:
-   http://groups.google.com/group/mdnalysis-discussion
+.. _`GitHub Discussions`:
+   https://github.com/MDAnalysis/mdanalysis/discussions
 .. _`Code of Conduct`: https://www.mdanalysis.org/pages/conduct/
 .. _`Issue Tracker`: https://github.com/MDAnalysis/mdanalysis/issues
 .. _`MDAKits registry`: https://mdakits.mdanalysis.org/mdakits.html

doc/source/index.rst

@@ -39,7 +39,7 @@ The typical use case for MDAnalysis is to manipulate or analyse molecular dynami
 Participating
 =============
 
-MDAnalysis welcomes all contributions from its users. There are many ways you can help improve MDAnalysis, from asking questions on the `mdnalysis-discussion`_ mailing list, to raising issues on the `Issue Tracker`_, to adding your own code. Please see :ref:`contributing` for an introduction and guide to contributing to the code and documentation.
+MDAnalysis welcomes all contributions from its users. There are many ways you can help improve MDAnalysis, from asking questions on `GitHub Discussions`_, to raising issues on the `Issue Tracker`_, to adding your own code. Please see :ref:`contributing` for an introduction and guide to contributing to the code and documentation.
 
 .. important::
 
@@ -55,7 +55,7 @@ MDAnalysis welcomes all contributions from its users. There are many ways you ca
 Communications
 --------------
 
-Questions and discussions about MDAnalysis take place on `GitHub Discussions`_ and this repository’s `Issue Tracker`_. Anybody is welcome to join these conversations. Please ask questions about the usage of MDAnalysis on the `mdnalysis-discussion`_ mailing list, and report problems on the `Issue Tracker`_.
+Questions and discussions about MDAnalysis take place on `GitHub Discussions`_ and this repository’s `Issue Tracker`_. Anybody is welcome to join these conversations. Please ask questions about the usage of MDAnalysis on `GitHub Discussions`_, and report problems on the `Issue Tracker`_.
 
 Wherever possible, do not take these conversations to private channels, including contacting the maintainers directly. Keeping communication public means everybody can benefit and learn from the conversation.