* Translate final.md, hello_world.md, README.md, ROADMAP.md and SUMMARY.md
* Translatation complete
* Internationalization: move guide to en folder and preserve its history. (#494)
* Clean files and build mdBook with localization feature
* Rebase, remove leftovers and check book builds for every language: ✅
Co-authored-by: Jon Kelley <jkelleyrtp@gmail.com>
