DOC: Release guidelines.

RELEASE_GUIDELINES.md

@@ -36,4 +36,12 @@ guidelines of the CaosDB Project
   * `src/doc/conf.py`
   * `CHANGELOG.md`: Re-add the `[Unreleased]` section.
 
-10. Add a gitlab release in the respective repository.
+10. Add a gitlab release in the respective repository:
+    https://gitlab.indiscale.com/caosdb/src/caosdb-server/-/releases
+
+    Add a description, which can be a copy&paste from the CHANGELOG, possibly prepended by:
+    ```md
+# Changelog
+
+[See full changelog](https://gitlab.indiscale.com/caosdb/src/caosdb-server/-/blob/v0.7.3/CHANGELOG.md)
+    ```