License missing

[Drudoo]

I would like to fork and continue the work, as there are so few python/flask based opds servers available and this one is working pretty good, but could use a few tweaks.

But a license is missing. Would it be possible to add a license that would allow for continuous work such as the MIT license?

[badstreff]

Hey @Drudoo, sure I can get one added, and I'm fine with the MIT license, I think I have it on a few of my other projects already

[Drudoo]

@badstreff Will you add the license yourself, or do you want me to make a PR?