Fix discord social image URL

[glenn-jocher]

🤖 Generated by Copilot at c7d7119

Summary

🖼️🚀🌐

This pull request updates the logo and discord icons in the README.md and README.zh-CN.md files, using raw links instead of blob links. This enhances the visual quality and performance of the project's documentation.

Sing, O Muse, of the swift and skillful coder
Who fixed the broken links of the README files
And made the logo and discord icons shine
Like the bright stars of Zeus in the night sky

Walkthrough

• Update the logo and discord icons in the main and Chinese README files to use raw links for faster and more reliable loading (link, link, link, link)

🛠️ PR Summary

_{Made with ❤️ by Ultralytics Actions}

🌟 Summary

Update Discord logo links in README files for proper image rendering.

📊 Key Changes

• Replaced broken Discord logo image links with correct paths in both English and Chinese README files.
• Updated image references from the blob to the raw directory on GitHub for consistent and correct display.

🎯 Purpose & Impact

• Purpose: Ensure Discord logos are correctly displayed in the repository's READMEs, maintaining the professional appearance and usability of the documentation.
• Impact: Improves user experience by displaying social media icons as intended, potentially increasing community engagement through accessible Discord links. 🤝🎨