Don't duplicate meeting generation #189
Description
It should skip generating a new issue or a new HackMD if one for the same meeting / meeting notes already exist. It should still update their contents.
Pretty much:
- Check GH issue exists for this meeting (check generated title/search for title?)
- Exists? Retrieve that issue, and update its content, doesn't generate new one?
- Check HackMD for file existence, do same thing.