Publish Wechaty Document Site to https://wechaty.js.org

The js.org has this great domain name service, and there are already many JS projects that hosted on it.

So we decided to host ours to [wechaty.js.org](https://wechaty.js.org), thanks JS.org!

P.S. Our doc repo is at <https://github.com/wechaty/docs>

Related: https://github.com/js-org/js.org/pull/3723