Reformat Markdown code blocks

[glenn-jocher]

🛠️ PR Summary

_{Made with ❤️ by Ultralytics Actions}

🌟 Summary

Improved documentation clarity and consistency across various guides.

📊 Key Changes

• Consistent use of double quotes for <YOUR-API-KEY> and <Dataset ID> across all documentation.
• Adjusted spacing and comments to improve readability and maintain coding standards.
• Minor adjustments to code snippets for consistency, like uniform comment spacing and aligning parameter assignments.

🎯 Purpose & Impact

• Enhanced Readability: The changes aim to make the documentation easier to read and understand, helping both new and returning users to navigate the SDK more efficiently.
• Consistency: Uniform code and comment styling across the documentation enhance the overall user experience and diminish confusion.
• Developer Experience: Small tweaks like these contribute to a smoother workflow for developers by providing clear and consistent guidelines.

These updates, while minor, are part of ongoing efforts to ensure the Ultralytics documentation remains user-friendly and up to date, ultimately supporting the community in making the most out of their AI and machine learning projects. 🚀