Save more metadata + history

[PotcFdk]

Save (and keep updated) more than just the video title. youtube-dl can also grab a video's description.

Maybe add optional version control (git) support to keep track of changes to metadata.

• [x] description
• [ ] comments?
• [ ] ?

[myrdd]

+1 for comments. see e.g. https://github.com/egbertbouman/youtube-comment-downloader, which provides the comments as json ~~or csv~~

I'd love to have the playlists stored as well. that is, which video is in which playlist—maybe even in multiple.