Add new translation: Chinese

Hi! I recently translated this book to Chinese.
I would be very grateful if you can add the translation.

Author: Cinea4678

src/12_appendix/01_translations.md

@@ -5,3 +5,4 @@ For resources in languages other than English.
 - [Русский](https://doc.rust-lang.ru/async-book/)
 - [Français](https://jimskapt.github.io/async-book-fr/)
 - [فارسی](https://rouzbehsbz.github.io/rust-async-book/)
+- [汉语](https://cinea4678.github.io/async-book/)