Update tutorial.ipynb

[glenn-jocher]

Simplify TensorRT image size example

🛠️ PR Summary

_{Made with ❤️ by Ultralytics Actions}

🌟 Summary

Update to YOLOv5 tutorial for simplified TensorRT model export and inference image size specification.

📊 Key Changes

• Changed the image size parameter in the TensorRT section of the YOLOv5 tutorial notebook from --imgsz 640 640 to --imgsz 640 for both model export and inference commands.

🎯 Purpose & Impact

• Consistency: Ensures the image size argument is uniformly specified across the tutorial, which helps prevent confusion or errors.
• Ease of Use: Simplifies the command for users, making it easier to understand and execute.
• Potential Impact: Could lead to fewer user mistakes and a smoother experience for those new to YOLOv5 or TensorRT, facilitating better adoption and usability of the tutorial.