dropdown + moving link

Author: story645

doc/devel/development_setup.rst

@@ -81,21 +81,24 @@ Now set the remote name ``upstream`` to point to the Matplotlib main repository:
          git remote add upstream [email protected]:matplotlib/matplotlib.git
 
 You can now use ``upstream`` to retrieve the most current snapshot of the source
-code, as described in :ref:`development-workflow`.  See also `Managing remote repositories
-<https://docs.github.com/en/get-started/getting-started-with-git/managing-remote-repositories>`__.
+code, as described in :ref:`development-workflow`.
 
-.. note::
+.. dropdown:: Additional ``git`` and ``GitHub`` resources
+   :color: info
+   :open:
 
-  For more information on ``git`` and ``GitHub``, check the following resources.
+   For more information on ``git`` and ``GitHub``, see:
+
+   * `Git documentation <https://git-scm.com/doc>`_
+   * `GitHub-Contributing to a Project <https://git-scm.com/book/en/v2/GitHub-Contributing-to-a-Project>`_
+   * `GitHub Skills <https://skills.github.com/>`_
+   * :ref:`using-git`
+   * :ref:`git-resources`
+   * `Installing git <https://git-scm.com/book/en/v2/Getting-Started-Installing-Git>`_
+   * `Managing remote repositories <https://docs.github.com/en/get-started/getting-started-with-git/managing-remote-repositories>`_
+   * https://tacaswell.github.io/think-like-git.html
+   * https://tom.preston-werner.com/2009/05/19/the-git-parable.html
 
-  * `Git documentation <https://git-scm.com/doc>`_
-  * `GitHub-Contributing to a Project <https://git-scm.com/book/en/v2/GitHub-Contributing-to-a-Project>`_
-  * `GitHub Skills <https://skills.github.com/>`_
-  * :ref:`using-git`
-  * :ref:`git-resources`
-  * `Installing git <https://git-scm.com/book/en/v2/Getting-Started-Installing-Git>`_
-  * https://tacaswell.github.io/think-like-git.html
-  * https://tom.preston-werner.com/2009/05/19/the-git-parable.html
 
 .. _dev-environment: