translation into Brazilian Portuguese and corrections in the English …

[luizcmarin]

…translation

Two changes are worth highlighting:

• creation of "guide" folder and translations moved there (as standard for documents)
• corrections of links and other 'little things' in English

Furthermore, all links have been verified. 🥴

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 87.82%. Comparing base (e380ae2) to head (e6da03f). Report is 1 commits behind head on master.

:exclamation: Current head e6da03f differs from pull request most recent head 5fc7a4e. Consider uploading reports for the commit 5fc7a4e to get more accurate results

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #819 +/- ## ============================================= - Coverage 99.56% 87.82% -11.75% Complexity 1316 1316 ============================================= Files 64 64 Lines 3236 3236 ============================================= - Hits 3222 2842 -380 - Misses 14 394 +380 ```

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