Update installation.mdx

Author: ajay-dhangar

docs/installation.mdx

@@ -3,8 +3,6 @@ title: Installation
 description: How to install CodeHarborHub locally, set up dependencies, and run the development server in minutes.
 ---
 
-# Installation
-
 CodeHarborHub is built with **[Docusaurus](https://docusaurus.io/)** and a modern **React** ecosystem.
 This guide will help you **clone the repository, install dependencies, and start the local development server**.
 
@@ -180,4 +178,4 @@ npm install
 
 🎉 **You’re ready!**
 Your local development environment for **CodeHarborHub** is now live.
-Start exploring, editing, and contributing to build the **world’s best free tech-learning platform**.
+Start exploring, editing, and contributing to build the **world’s best free tech-learning platform**.