issue#700 final fix

Author: Condition00

docs/Nextjs/intro-nextjs.md

@@ -7,6 +7,8 @@
 
 </div>
 
+<div align="center">
+
 ## 📚 Table of Contents
 
 | Section | Topics Covered |
@@ -22,6 +24,8 @@
 | **[Helpful Resources](#helpful-resources)** | Official docs, tutorials, community, video resources |
 | **[Conclusion](#conclusion)** | Key takeaways and next steps |
 
+</div>
+
 ---
 
 **Next.js** is a production-ready React framework that revolutionizes how we build modern web applications. Created and maintained by [Vercel](https://vercel.com), Next.js extends React's capabilities by providing a robust, opinionated structure that handles the complexities of production deployment, performance optimization, and developer experience out of the box.