Alteração de arquivo README para teste

[pachedres]

Alterado arquivo README para testar as funcionalidades de versionamento e colaboração com o GitHub.

[Copilot]

Pull Request Overview

This PR updates the README.md file to test Git versioning and collaboration functionality. The change replaces the existing GitHub Training Kit documentation with a simple Portuguese README for software engineering testing purposes.

• Replaced the title from "GitHub Training Kit" to "Engenharia de Software"
• Removed all original content about the training kit, contributing guidelines, and licensing information
• Added a brief description section explaining this is a test file for exploring Git version control and collaboration features

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_{Tip: Customize your code reviews with copilot-instructions.md. Create the file or learn how to get started.}