Simplifying the releases page (#765)

* Trying a table format for release notes

* Fix links

* Remove toctree

* Trying a list instead

Author: tsmbland

docs/release-notes/index.rst

@@ -3,24 +3,17 @@ Release notes
 
 This is the list of changes to MUSE between each release.
 
-To update to the latest version, run `pip install --upgrade muse-os`
+To update to the latest version, run ``pip install --upgrade muse-os``
 
-.. toctree::
-   :maxdepth: 1
-
-   v1.4.3
-   v1.4.2
-   v1.4.1
-   v1.4.0
-   v1.3.3
-   v1.3.2
-   v1.3.1
-   v1.3.0
-   v1.2.3
-   v1.2.2
-   v1.2.1
-   v1.2.0
-
-.. toctree::
-   :caption: Upcoming releases:
-   :maxdepth: 1
+* :ref:`/release-notes/v1.4.3.md`
+* :ref:`/release-notes/v1.4.2.md`
+* :ref:`/release-notes/v1.4.1.md`
+* :ref:`/release-notes/v1.4.0.md`
+* :ref:`/release-notes/v1.3.3.md`
+* :ref:`/release-notes/v1.3.2.md`
+* :ref:`/release-notes/v1.3.1.md`
+* :ref:`/release-notes/v1.3.0.md`
+* :ref:`/release-notes/v1.2.3.md`
+* :ref:`/release-notes/v1.2.2.md`
+* :ref:`/release-notes/v1.2.1.md`
+* :ref:`/release-notes/v1.2.0.md`