Resolve Isssue #4

[davidmikan]

Introduced check to should_comment_on_comment: if the comment isn't a top-level comment and it's parent isn't either, check if its parent was authored by the bot and its grandparent by it's own author. If so, return False, is_low_effort

[algotastic]

This is a good idea.

[fmhall]

Thanks @davidmikan and @algotastic