Root cause:
1. README.md used Markdown link syntax inside HTML table block which may not render as clickable
2. persona-studio/index.html was missing, causing the target URL to 404
Fix:
- Replace Markdown link with HTML <a><img> badge button + plain text <a> fallback link
- Create persona-studio/index.html that redirects to persona-studio/frontend/index.html
- Add plain text link to persona-studio/README.md
Co-authored-by: qinfendebingshuo <207279273+qinfendebingshuo@users.noreply.github.com>
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