Is your feature request related to a problem? Please describe.

Checklists help with guiding a process to completion. They ensure quality and make their users confident, because they won't forget certain aspects of the process.

Describe the solution you'd like

Add a pull requests checklist to the pull request template and/or "maintainer handbook" (the manual or maintainers/*.md)

Describe alternatives you've considered

• Keep forgetting to do certain things leading to
  • bloat
  • regressions
  • forgotten documentation
  • uncertainty as to why changes to the code were made
  • prs getting slowed by delays, reminders and more delays

Have a github action that posts the checklist to each PR. This is a bit more robust as contributors may mess with the checklist.

Additional context

• I forgot to ask for documentation in Improve readDir performance #7314.

Priorities

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