Emit notifications to GitHub issue while parsing the YAML metadata

[triangle-man]

While parsing the GitHub metadata, we log errors and warnings. These should be summarised and posted to the issue.

• [ ] Make trial post to some issue
  • [ ] Create post contents from notifications
  • [ ] Check whether existing post exists and do not repost unless metadata block has changed since last post;
• [ ] Fix metadata block parsing (TODO: make separate issue)
• [ ] Post
  • Don't post too quickly -- no more than 1/second and possibly longer since making issues can trigger notifications (https://docs.github.com/en/rest/guides/best-practices-for-integrators#dealing-with-secondary-rate-limits)
• [ ] Set up continuous checking (TODO: post separate issue)

[triangle-man]

Beep boop, Im a bot.

[triangle-man]

How to post to an issue in GitHub

The above comment was created with:

curl \                                                      
  -X POST \
  -H "Accept: application/vnd.github+json" \
  -H "Authorization: Bearer <my-bearer-token>" \
  https://api.github.com/repos/alan-turing-institute/whatwhat/issues/26/comments \
  -d '{"body":"Beep boop, Im a bot."}'

[triangle-man]

Have set up a new branch: feature/26

[NowWhatBot]

I'm a bot. Beep boop!