📚 Update README with Python virtual environment setup instructions

[devopsninja2021]

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[Copilot]

Pull Request Overview

This PR adds detailed Python virtual environment setup instructions to the course setup documentation. The update provides step-by-step guidance for creating and activating virtual environments across different operating systems.

• Adds example commands for creating Python virtual environments
• Includes platform-specific activation instructions for macOS, Linux, and Windows
• Enhances the existing Python 3.12+ requirement with practical setup guidance

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[Copilot]

Pull Request Overview

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[Copilot]

Pull Request Overview

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