Ultralytics Code Refactor https://ultralytics.com/actions

[glenn-jocher]

This Ultralytics PR refactors code to improve performance and readability. 🔄

Key changes include:

• 🚀 Optimized various functions for faster execution.
• 🧩 Simplified complex logic for better understanding and maintenance.
• 🗑️ Removed redundant code to streamline operations.
• 📚 Improved code structure and organization.

These changes aim to enhance the overall quality and efficiency of the code. 🌟

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🛠️ PR Summary

_{Made with ❤️ by Ultralytics Actions}

🌟 Summary

This PR improves the README.md for ultralytics/mnist, adds detailed docstrings to various Python functions, and enhances code documentation for better clarity.

📊 Key Changes

• Updated README.md to link the Ultralytics logo to the official site and replaced the Instagram link with Bilibili.
• Added docstrings to multiple neural network model classes and utility functions within the codebase.
• Enhanced code documentation in function headers to clarify the purpose and behavior of critical functions.

🎯 Purpose & Impact

• Improved Readability: The added docstrings and enhanced documentation make the code more understandable for developers, easing maintenance and contribution.
• Better User Guidance: Updated README.md links provide users with direct access to relevant resources and community channels.
• Clarity in Functionality: Detailed docstrings explain the intricate processes and parameters involved, helping both new and experienced developers use the code more effectively.