Add PT-BR translations (#456)

* 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>

docs/guide/src/en/SUMMARY.md

@@ -33,11 +33,11 @@
   - [Desktop](publishing/desktop.md)
   - [Web](publishing/web.md)
 
------------
+---
 
 - [Custom Renderer](custom_renderer/index.md)
 
------------
+---
 
 [Roadmap](roadmap.md)
 [Contributing](contributing.md)