docs(pt-BR): improve clarity and readability for Roman Numeral Converter challenge#250

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DaviBonetto wants to merge 2 commits intofreeCodeCamp:mainfrom

DaviBonetto:improve-roman-numeral-converter-pt-br

Commits on Jan 8, 2026

docs(pt-BR): improve caesars-cipher challenge description clarity and translation quality
gugastork
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docs(pt-BR): improve clarity and readability for Roman Numeral Converter challenge
gugastork
committed