* Add PR checklist document. * Update docs/pr_checklist.md Co-authored-by: James Young <[email protected]> * Apply suggestions from code review Co-authored-by: Ryan <[email protected]> * Reword the lower/raise/adjust suggestion somewhat for clarity. * Add suggestion from @Didel for coding conventions. Co-authored-by: James Young <[email protected]> Co-authored-by: Ryan <[email protected]>