Add release table to RNs (r9)

Add table with links to older RNs and additional versioning
information to the RNs.

Change-Id: Iecf7cfe56352df1c743d2bf231ca0444a4cb4e6f
Signed-off-by: Ron Stone <ronald.stone@windriver.com>

doc/source/releasenotes/index.rst

@@ -1525,3 +1525,64 @@ Kubernetes APIs that will be removed in K8s 1.25 are listed below:
 
 **See**: https://kubernetes.io/docs/reference/using-api/deprecation-guide/#v1-25
 
+
+--------------------------------------
+Release Information for other versions
+--------------------------------------
+
+You can find details about a release on the specific release page.
+
+.. list-table::
+
+   * - Version
+     - Release Date
+     - Notes
+     - Status
+   * - StarlingX R8.0
+     - 2023-02
+     - https://docs.starlingx.io/r/stx.8.0/releasenotes/index.html
+     - Maintained
+   * - StarlingX R7.0
+     - 2022-07
+     - https://docs.starlingx.io/r/stx.7.0/releasenotes/index.html
+     - Maintained
+   * - StarlingX R6.0
+     - 2021-12
+     - https://docs.starlingx.io/r/stx.6.0/releasenotes/index.html
+     - Maintained
+   * - StarlingX R5.0.1
+     - 2021-09
+     - https://docs.starlingx.io/r/stx.5.0/releasenotes/index.html
+     - :abbr:`EOL (End of Life)`
+   * - StarlingX R5.0
+     - 2021-05
+     - https://docs.starlingx.io/r/stx.5.0/releasenotes/index.html
+     - :abbr:`EOL (End of Life)`
+   * - StarlingX R4.0
+     - 2020-08
+     - 
+     - :abbr:`EOL (End of Life)`
+   * - StarlingX R3.0
+     - 2019-12
+     - 
+     - :abbr:`EOL (End of Life)`
+   * - StarlingX R2.0.1
+     - 2019-10
+     - 
+     - :abbr:`EOL (End of Life)`
+   * - StarlingX R2.0
+     - 2019-09
+     - 
+     - :abbr:`EOL (End of Life)`
+   * - StarlingX R12.0
+     - 2018-10
+     - 
+     - :abbr:`EOL (End of Life)`
+
+
+StarlingX follows the release maintenance timelines in the `StarlingX Release
+Plan <https://wiki.openstack.org/wiki/StarlingX/Release_Plan#Release_Maintenance>`_.
+
+The Status column uses `OpenStack maintenance phase <https://docs.openstack.org/
+project-team-guide/stable-branches.html#maintenance-phases>`_ definitions.
+