(DOCSP-21732): Add link to GitHub release (#393)

Author: jeff-allen-mongo

source/release-notes.txt

@@ -52,6 +52,8 @@ Bug Fixes:
 
   - Hide SSH tunnel password.
 
+View this release on `GitHub <https://github.com/mongodb-js/compass/releases/tag/v1.31.0>`__.
+
 `All JIRA issues closed in 1.31.0
 <https://jira.mongodb.org/issues/?jql=project%20%3D%20COMPASS%20AND%20fixVersion%20%3D%201.31.0>`__.