Consider adding a license

[KarboniteKream]

Considering the files in this repository are meant to be directly copied into a project, some people might have concerns about the project having no license, since it's not clear whether there are any limitations.

Reference: https://choosealicense.com/no-permission/

[trustin]

CC0 (public domain) sounds good to me. Thoughts?

[KarboniteKream]

I'm not very familiar with Creative Commons licenses, but it looks very permissive. SGTM!

[KarboniteKream]

cc @syleeeee