Add Dockerfile

[nikitastupin]

Hi @Cgboal

Thanks for the project! I'd like to add an option to build it with docker. The main reason is to avoid possible dependency conflicts for some users (as on my Ubuntu system) 😃

[Cgboal]

Sure thing. Wont merge this PR as there's a different way i'd like to do this but thank you for the suggestion

[Cgboal]

I've added dockerization now. New container will build automatically on each push with github actions.

docker run cgboal/crobat:latest -s twitter.com

[nikitastupin]

That's great thank you!