Update social media links

[glenn-jocher]

🤖 Generated by Copilot at 46430a5

Summary

📝🎨♿

This pull request enhances the documentation of the ultralytics/yolov5 repository by improving the readability and accessibility of the README.md and README.zh-CN.md files. It applies consistent formatting, spacing, and alt attributes to the text, tables, and icons in both files.

Sing, O Muse, of the skillful scribe who polished the README file
With careful breaks and spaces, and alt attributes for the blind
He made the text more clear and concise, pleasing to every eye
And matched his work in Chinese, with tables and icons aligned

Walkthrough

• Remove unnecessary style attribute from social media icons in README.md and README.zh-CN.md (link, link)
• Add line breaks after first sentences in various sections to improve readability and formatting in README.md and README.zh-CN.md (link, link, link, link, link, link, link, link, link)
• Remove extra spaces in tables to improve alignment and formatting in README.md and README.zh-CN.md (link, link, link, link, link, link, link, link, link, link)
• Add alt attribute to social media icons to improve accessibility and SEO in README.md and README.zh-CN.md (link, link)

🛠️ PR Summary

_{Made with ❤️ by Ultralytics Actions}

🌟 Summary

Refinement of social links and cleanup of README content in YOLOv5 repository.

📊 Key Changes

• 🧹 Removed inline CSS for social links and opted for direct HTML image tags with alt text for better accessibility.
• 💬 Updated alt text for social icons to include "Ultralytics" branding.
• ✂️ Trimmed down redundant language and combined lines for a more concise README.
• 🚚 Removal of a standalone section dedicated to YOLOv8.

🎯 Purpose & Impact

• 🌐 Improves social link accessibility and streamlines user experience with more descriptive alt text.
• ✨ Enhances the README's readability and navigability with a cleaner layout.
• 📄 Slight reduction in README length, leading to quicker load times and less scrolling.
• 🚀 Potentially improves the repo's appearance and user interface on platforms with different stylesheets or when viewed from code editors without CSS support.