add step to editor workflow

Author: nuest

guide/community-workflow-editor.md

@@ -29,3 +29,4 @@ When a new issue is assigned to a codecheck editor in the register, here are a f
     - Clear up the labels of the register issue - all labels except the [`community`](https://github.com/codecheckers/register/labels/community)/[`journal`](https://github.com/codecheckers/register/labels/journal)/[`conference/workshop`](https://github.com/codecheckers/register/labels/conference%2Fworkshop) should be removed.
     - "Archive" the repository clone in the codecheckers organisation on GitHub/the cdchk organisation on GitLab ([instructions for GitHub](https://docs.github.com/en/github/creating-cloning-and-archiving-repositories/about-archiving-repositories), [instructions for GitLab](https://docs.gitlab.com/ee/user/project/working_with_projects.html#archive-a-project))
     - Close the issue on the register.
+    - If a community check on a preprint is eventually mentioned in the published peer-reviewed article, you can update the reference DOI to the final paper, see [this example commit](https://github.com/codecheckers/leba-manuscript/commit/06e9a82da9a29a6edea1307ffbee050ee0a40cbb).