docs(pt-br): Translate you-might-not-need-an-effect.md (#675)

* docs(pt-br): Translate you-might-not-need-an-effect.md

* docs(pt-br): Fix translation for you-might-not-need-an-effect.md

* docs(pt-br): Fix translation for you-might-not-need-an-effect.md

Remove empty line

* Apply suggestions from code review

Co-authored-by: Tarcísio Surdi <[email protected]>

* Apply suggestions from code review

* docs(pt-br): minor adjustments

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Co-authored-by: Tarcísio Surdi <[email protected]>

Author: augustodg2