Add hashtag with song name

[jesusjimsa]

It would be interesting to add one or two hashtags to every tweet to identify the song being tweeted. For example:

They bought and sold you
#WhileMyGuitarGentlyWeeps #TheBeatles

This would require editing the lyrics.txt file to add a hashtag to every single line.
Another approach could be separate the lyrics in individual files for every song and randomly select a file and a line from a file to create the tweet and add the hashtag.

[jesusjimsa]

While working on this (I have to update 5300 lines manually, so I have time to think) I thought that maybe this is not the best idea. Right now, only a line from a song is being posted, having the hashtags could potentially not want to quote retweet the tweets with messages like this:

This, together with likes, is one of the more popular interactions the bot is having (even more than regular retweets. So I have decided I will stop adding hashtags to the file in #6. I will leave the pull request open in case someone (unlikely) wants to finish adding them, in which case I would add them to Mastodon only. But, as explained, I will not be adding this for now.