DOC: Better documentation hints in MR template.

.gitlab/merge_request_templates/Default.md

@@ -28,6 +28,7 @@ guidelines](https://gitlab.com/caosdb/caosdb/-/blob/dev/REVIEW_GUIDELINES.md)
 - [ ] Up-to-date CHANGELOG.md (or not necessary)
 - [ ] Up-to-date JSON schema (or not necessary)
 - [ ] Appropriate user and developer documentation (or not necessary)
+  - Update / write published documentation (`make doc`).
   - Update / write published documentation (`make doc`).
   - How do I use the software?  Assume "stupid" users.
   - How do I develop or debug the software?  Assume novice developers.
@@ -42,7 +43,8 @@ guidelines](https://gitlab.com/caosdb/caosdb/-/blob/dev/REVIEW_GUIDELINES.md)
 - [ ] I understand the intent of this MR
 - [ ] All automated tests pass
 - [ ] Up-to-date CHANGELOG.md (or not necessary)
-- [ ] Appropriate user and developer documentation (or not necessary), also in published
+- [ ] Appropriate user and developer documentation (or not necessary), also in published, also in published
+      documentation.
       documentation.
 - [ ] The test environment setup works and the intended behavior is reproducible in the test
   environment