More PR template updates

[joeflack4]

Overview

Did some further updates following #430.

Pre-merge checklist

=====================

Documentation

• Was the documentation added/updated under docs/?
  • Yes
  • No, updates to the docs were not necessary after careful consideration

QC

• Was the full pipeline run before submitting this PR using sh run.sh make build-mondo-ingest on this branch (after docker pull obolibrary/odkfull:dev), and no errors occurred?
  • Yes
  • No, there are no functional (code-related) changes to the pipeline in the PR, so no re-run is necessary

New Packages

• Were any new Python packages added?
  • Yes, requirements.txt.full was updated and an ODK issue submitted
  • No

• Were any other non-Python packages added?
  • Yes, Dockerfile updated and an ODK issue submitted
  • No

PR Review and Conversations Resolved

• Has the PR been sufficiently reviewed by at least one team member of the Mondo Technical team and all threads resolved?
  • Yes

Change details

PR template update

• Updated comment regarding 'resolves ISSUE' to be more concise and readable.
• Rename section: PR Overview -> Overview
• Moved Overview out of and above the Pre-merge checklist section
• Updated comment for Overview section
• Codestyle: (i) Added line breaks to adhere to a 100 character line limit, (ii) Removed some visually redundant bullet indentation.

[joeflack4]

Double-approved! So merging.