Adding a checklist to a repo

Implementing MR checklists

Very simply I would like to know how to create and activate an MR checklist for a given repo.
From what I understand (and please correct) you need to:

  • *Create a directory at the root called .gitlab
  • Inside .gitlab/ create merge_request_templates
    • Create a marddown file, called whatever and add the content you wish to display (i.e. checkboxes and text) *
      What I can’t seem to find is how to “activate” it
  • *Do I create an MR to introduce these changes? Into the master branch? *
  • After that?

Thanks for taking the time to be thorough in your request, it really helps! :blush:
The documentation for such (what I think is) a key feature is horrible and opaque.