Fix redirected URLs

[glenn-jocher]

Summary

• update redirected external URLs to their final destinations
• apply the redirect cleanup across tracked documentation and related text files

Testing

• no tests run (link-only changes)

🛠️ PR Summary

_{Made with ❤️ by Ultralytics Actions}

🌟 Summary

🔗 This PR makes small but important README link fixes to improve documentation accuracy and link reliability in the ultralytics/assets repository.

📊 Key Changes

• Updated the AGPL-3.0 license link in README.md to use the corrected OSI URL path.
• Updated the YouTube link in README.md to use the full www.youtube.com format instead of the shorter domain version.
• No code, assets, or functionality were changed—this is a documentation-only cleanup 📝.

🎯 Purpose & Impact

• Improves the accuracy of external links, helping users reach the correct licensing information more reliably.
• Makes the README a bit more consistent and polished, especially for users navigating Ultralytics social and licensing resources.
• Reduces the chance of broken or inconsistent redirects, which improves the overall documentation experience ✅

[UltralyticsAssistant]

👋 Hello @glenn-jocher, thank you for submitting a ultralytics/assets 🚀 PR! This is an automated message to help with review preparation, and an engineer will assist you shortly. Please review the checklist below to help ensure smooth integration of your README link fix 🔗

• ✅ Define a Purpose: Clearly explain the purpose of your fix or feature in your PR description, and link to any relevant issues. Ensure your commit messages are clear, concise, and adhere to the project's conventions.
• ✅ Synchronize with Source: Confirm your PR is synchronized with the ultralytics/assets main branch. If it's behind, update it by clicking the 'Update branch' button or by running git pull and git merge main locally.
• ✅ Ensure CI Checks Pass: Verify all Ultralytics Continuous Integration (CI) checks are passing. If any checks fail, please address the issues.
• ✅ Update Documentation: Update the relevant documentation for any new or modified features.
• ✅ Add Tests: If applicable, include or update tests to cover your changes, and confirm that all tests are passing.
• ✅ Sign the CLA: Please ensure you have signed our Contributor License Agreement if this is your first Ultralytics PR by writing "I have read the CLA Document and I sign the CLA" in a new message.
• ✅ Minimize Changes: Limit your changes to the minimum necessary for your bug fix or feature addition. "It is not daily increase but daily decrease, hack away the unessential. The closer to the source, the less wastage there is." — Bruce Lee

For more guidance, please refer to our Contributing Guide. Don't hesitate to leave a comment if you have any questions. Thank you for contributing to Ultralytics! 🚀

[UltralyticsAssistant]

🔍 PR Review

_{Made with ❤️ by Ultralytics Actions}

Clean README-only change. Both updates are low risk and aligned with the stated goal of removing unnecessary redirects; I did not find any actionable issues in this diff.

[UltralyticsAssistant]

Absolutely—huge thanks for merging this, @glenn-jocher! 🎉

As Benjamin Franklin said, “Well done is better than well said.” This PR is a great example of that spirit: small README link fixes, but meaningful improvements that make the Ultralytics documentation more accurate, polished, and reliable for everyone who visits the repo.

Really appreciate the care behind these documentation cleanups—details like this strengthen the overall user experience in lasting ways. Thank you for continuing to keep Ultralytics resources sharp and trustworthy! 🙌