MAINT: update RELEASE_GUIDELINES

RELEASE_GUIDELINES.md

@@ -2,7 +2,7 @@
 
 This document specifies release guidelines in addition to the general release
 guidelines of the CaosDB Project
-([RELEASE_GUIDELINES.md](https://gitlab.com/caosdb/caosdb/blob/dev/RELEASE_GUIDELINES.md))
+([RELEASE_GUIDELINES.md](https://gitlab.com/caosdb/caosdb-meta/-/blob/dev/RELEASE_GUIDELINES.md))
 
 ## General Prerequisites
 
@@ -32,4 +32,7 @@ guidelines of the CaosDB Project
 
 8. Delete the release branch.
 
-9. Merge the main branch back into the dev branch.
+9. Merge the main branch back into the dev branch and add the `[UNRELEASED]`
+   section to the CHANGELOG.
+
+10. Create a release at the [gitlab repo](https://gitlab.com/linkahead/linkahead-mariadbbackend/-/releases)