Hi there.

It would be nice to request translations for each country and provide sub directories like those:

• https://doc.rust-lang.org/book/index.html (main documentation)
• https://doc.rust-lang.org/book/pt-br/index.html (Brazilian translation)
• https://doc.rust-lang.org/book/ru/index.html (Russian translation)
• https://doc.rust-lang.org/book/ch/index.html (Chinese translation)
• and so on

This way, people from many countries would be able to send PRs translating the official documentation for their languages.

cheers

Refs:

• Add multilingual support mdBook#5
• Add option to localize books in multiple languages mdBook#1306