WIP Slack Ping For Transcripts on Tor Posts

[erenbektas]

Closes #355

This sends a message to #general channel on Slack when a transcriber posts a transcription under a ToR post.

It should be like:

Looks like u/jenoah_m posted a transcription on ToR Post instead of posting it on r/ProgrammerHumor. 🤔

Note that, following words in this message will be hyperlinked to the related targets:

1. u/jenoah_m (to user's profile)
2. transcription (to the transcription comment on ToR Post)
3. ToR Post (to the ToR Post where the transcription was posted)
4. r/ProgrammerHumor (to the post on partner sub)

[itsthejoker]

This string is going to slack, right? It would probably be better if we use the native slack link formatting.

Suggested change

	Looks like {user_url} posted a [transcription]({post_url}) on [ToR Post]({tor_post}) instead of posting it on [r/{sub_name}]({post_link}). :facepalm:
	Looks like <{user_url}|{user_url}> posted a <{post_url}|transcription> on <{tor_post}|the ToR Post> instead of posting it on <{post_link}|r/{sub_name}>. :facepalm:

[TimJentzsch]

Good catch!

[erenbektas]

Alright I finally found some more time to work on this. I didn't know that slack had some different formatting for that! Thankss