message: docs(readme): Add a link for discord badge in `README.md`
diff: </p>
  <p align="center">
  + <a href="https://discord.com/invite/GnHbXTdZz6">
  <img alt="Discord" src="https://img.shields.io/discord/889779439272075314">
  + </a>
  </p>
  SWC (stands for `Speedy Web Compiler`) is a super-fast TypeScript / JavaScript compiler written in Rust. It's a library for Rust and JavaScript at the same time. If you are using SWC from Rust, see [rustdoc](https://rustdoc.swc.rs/swc/) and for most users, your entry point for using the library will be [parser](https://rustdoc.swc.rs/swc_ecma_parser/).
  