[feat] 🌐 Add support for other languages (internationalization)

[k0gen]

Here's the relevant read up: Manage Translations for Sphinx projects

[kn0wmad]

Thank you @k0gen, this is going to be a big priority for me as soon as the 0.3 documentation is launched. It is a complete refactor of the docs with versioning and a ton of additional content!!

[kn0wmad]

https://github.com/funkill/mdbook-i18n