Add RKNN export format in notebooks

[RizwanMunawar]

🛠️ PR Summary

_{Made with ❤️ by Ultralytics Actions}

🌟 Summary

Updated titles and descriptions across multiple YOLO11 tutorial notebooks to better align them with their specific topics and added a new integration (RKNN) to the supported export formats.

📊 Key Changes

• Updated notebook titles and introductions for better clarity and focus (e.g., "Object counting," "Heatmaps generation," "Brain-tumor detection," etc.).
• Replaced vague generalizations like "Ultralytics YOLO11 notebook" with descriptions specific to the notebook's use case.
• Adjusted terminology for functions (e.g., "track" instead of "count") where applicable.
• Added RKNN integration as a supported export format in documentation tables.

🎯 Purpose & Impact

• Purpose: To improve user experience by providing clear, use-case-specific notebook descriptions, making it easier for users to navigate and learn. Enhanced terminology (e.g., "track," "count") ensures technical precision. The RKNN addition broadens compatibility for model deployment.
• Impact: Users can now better identify and utilize the most relevant notebooks. Clearer documentation reduces confusion and learning curves, making YOLO11 more accessible. RKNN support expands the toolbox for hardware-specific deployments. 🚀

[UltralyticsAssistant]

👋 Hello @RizwanMunawar, thank you for submitting a notebooks 🚀 PR to Ultralytics! To ensure a smooth review process and successful integration of your updates, please review the following checklist:

• ✅ Define a Purpose: Clearly explain the purpose of your update in your PR description, and link any relevant issues. Ensure your commit messages are clear, concise, and aligned with our conventions.
• ✅ Synchronize with Source: Ensure your branch is up-to-date with the main branch of the ultralytics/notebooks repository. If needed, update it by clicking the 'Update branch' button or using git pull and git merge main locally.
• ✅ Ensure CI Checks Pass: All Ultralytics Continuous Integration (CI) checks must pass. If any checks fail, kindly address the highlighted issues.
• ✅ Update Documentation: Make sure corresponding documentation has been updated to reflect your changes, particularly if they include new features like RKNN format implementation.
• ✅ Add Tests: If feasible, include or update relevant tests to validate the proposed changes, ensuring the updates work as expected.
• ✅ Sign the CLA: If this is your first contribution to Ultralytics, sign the Contributor License Agreement (CLA) by commenting: I have read the CLA Document and I sign the CLA.
• ✅ Minimize Changes: Focus your PR on the changes directly linked to your feature addition. For instance, in this case, ensure updates strictly pertain to adding RKNN export format and any associated clarifications/improvements in notebooks.

For further information, please consult our Contributing Guide to ensure alignment with our best practices.

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Thank you for your time and effort contributing to the enhancement of our notebooks! 🎉

[ambitious-octopus]

Looks good @RizwanMunawar !

[UltralyticsAssistant]

🎉 Exciting news — this PR is officially merged! Huge thanks to @RizwanMunawar for leading the charge and @ambitious-octopus for the valuable contributions. Your updates bring clarity, precision, and broaden the impact of YOLO11 through the RKNN integration—an incredible step forward for the Ultralytics community! 🚀

As Marcus Aurelius once said, “What we do now echoes in eternity.” Your thoughtful improvements will not only help users today but will resonate with countless others exploring the possibilities of YOLO11 for years to come. 💡✨ Thank you for driving innovation and making a meaningful difference! 🙌