Update README.md

[glenn-jocher]

Signed-off-by: Glenn Jocher glenn.jocher@ultralytics.com

🛠️ PR Summary

_{Made with ❤️ by Ultralytics Actions}

🌟 Summary

Refresh of YOLOv5 README with Updated Partner Logos and Contributors Image

📊 Key Changes

• Updated partner logos for Roboflow, ClearML, Comet, and Neural Magic to new versions hosted on the 'ultralytics/assets' repository.
• Refreshed the contributors' image link, pointing to the updated image in the 'ultralytics/assets' repository.

🎯 Purpose & Impact

• Improved Branding: New logos promote consistent and current branding for Ultralytics' partners.
• Updated Contributor Acknowledgments: The refreshed contributors' image ensures recognition of community contributions remains up-to-date.
• Enhanced Project Aesthetics: These updates maintain an attractive and professional look for the project's GitHub page, which may improve user engagement.
• No Impact on Functionality: The changes are purely visual and do not affect the functionality of the YOLOv5 software.