Editing an existing comment on an issue or a PR

[nedtwigg]

• Priority 1 - it doesn't feel broken
• Priority 2 - it would be nice to have syntax highlighting
• Non-priority - generating a savable CommentSpot
  • don't need to solve the unique_id problem

[nedtwigg]

• Enhance editing comments in issues and PRs #50 implemented part of this
• prs work great, issues have a problem
  • Enhance editing comments in issues and PRs #50 (comment)