adding tags for the repo

[Amomo]

Hello @pixedelic

I am a member of cdnjs project. We want to host this library on CDN. Could you please adding git tags for this repo?

Git tag can help us to know your release version. And, we could auto-update the library by a new tag.

Thanks for your help!

https://github.com/cdnjs/cdnjs/issues/8170