add real course material link

README.md

@@ -62,5 +62,5 @@ Please open a community discussion on the org page.
 <div style="width: 100%; border: 1px solid #ccc; padding: 20px; margin: 20px auto; box-shadow: 2px 2px 5px rgba(0, 0, 0, 0.1); background-image: linear-gradient(to bottom, #add8e6, #87ceeb); border-radius: 8px;">
   <img src="https://cdn-avatars.huggingface.co/v1/production/uploads/62d648291fa3e4e7ae3fa6e8/Jm3GYn6LHuasiLSlj03hd.png" alt="Course Materials" style="width: 7em; border-radius: 5px 5px 0 0;">
   <h2 style="color: #333; margin-bottom: 10px;">📚 Explore the Course Content</h2>
-  <a href="https://moon-ci-docs.huggingface.co/docs/mcp-course/pr_2/en/unit0/introduction" style="display: inline-block; padding: 10px 20px; background-color: #5cb85c; color: white; text-decoration: none; border-radius: 5px; transition: background-color 0.3s ease;" onmouseover="this.style.backgroundColor='#4cae4c'" onmouseout="this.style.backgroundColor='#5cb85c'">Access the Full Course</a>
+  <a href="https://huggingface.co/learn/mcp-course/unit0/introduction" style="display: inline-block; padding: 10px 20px; background-color: #5cb85c; color: white; text-decoration: none; border-radius: 5px; transition: background-color 0.3s ease;" onmouseover="this.style.backgroundColor='#4cae4c'" onmouseout="this.style.backgroundColor='#5cb85c'">Access the Full Course</a>
 </div>