update release doc

docs/developer-guide.md

@@ -181,8 +181,9 @@ doc](./README.md#versioning)
 
 Follow this quick checklist:
 
-* copy the versions inside the group_vars/all.yml to a new X.X.N-extra-vars.yml
+* copy the versions inside the group_vars/all.yml to a new XX.N-extra-vars.yml (in case of a new ACS major version)
 * run [updatecli workflow](https://github.com/Alfresco/alfresco-ansible-deployment/actions/workflows/updatecli.yml)
+* run [enterprise-extended](https://github.com/Alfresco/alfresco-ansible-deployment/actions/workflows/enterprise-extended.yml) and make sure it is green
 * ensure that the [tables in the main readme](README.md) has been updated
 * ensure that AMI id for the root molecule tests are not too outdated (e.g. [default suite](../molecule/default/))