Publish an example of a good commit message template
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The following discussion from !69076 should be addressed:
- [ ] @aqualls started a [discussion](https://gitlab.com/gitlab-org/gitlab/-/merge_requests/69076#note_672614326): (+1 comment)
> From a ~"Technical Writing" perspective, what's here is fine. I do wonder if we need to publish an example of a good commit message template, but that may be scope creep for this issue. I'll approve; give it some thought. I'll add ~"devops::create" + ~"group::source code" labels, as this MR doesn't have a specified stage/group, and the documentation (at least) belongs to them.
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