- Two references to `pipeline` in
  doc/development/testing_guide/end_to_end/index.md should have been
  `pipelines`

When fixing those, I notice the following:

- "Developer access" was referenced as "developer access", and it
  appears that we mostly capitalize Developer in this case

I searched the codebase for "developer access" and found a few other
occurrences:

- doc/development/documentation/workflow.md
- doc/user/project/new_ci_build_permissions_model.md
- doc/user/project/repository/repository_mirroring.md

While in those files I saw a couple of instances of `user` that should
be plural and also incorrect capitalization of "reporter access"