support `issue_comment: types: [edited]`

[georgettica]

Is your feature request related to a problem? Please describe. When I opened the repo, I expected the tool to work with new or edited comments.

Describe the solution you'd like A clear and concise description of what you'd like to happen.

• README.md updated to reflect this change
• possible code changes to make this work?

Describe alternatives you've considered N/A

Additional context N/A