Update tutorial.ipynb

[glenn-jocher]

🛠️ PR Summary

_{Made with ❤️ by Ultralytics Actions}

🌟 Summary

Updating YOLOv5 VOC training batch sizes and models in tutorial.

📊 Key Changes

• Added YOLOv5n model to the tutorial training script.
• Adjusted the batch sizes for training the models.

🎯 Purpose & Impact

• 📈 Inclusivity: By including the YOLOv5n model, users now have a more comprehensive understanding of how to train different YOLOv5 model sizes.
• 💡 Optimization: The change in batch sizes is likely intended to optimize the training process for each model size.
• 🚀 Performance: Users can potentially see better performance or efficiency during training with these updated parameters.
• 🧠 Knowledge Expansion: The tutorial update helps new users learn with the latest information and best practices.