Update full stack dev.md

Author: shreyamalogi

full stack dev.md

@@ -1,12 +1,12 @@
-1. **[Online Library 💼:](https://github.com/CodeMacrocosm/Online-Library)**
+1. **[Online Library 💼:]**
    - **Description:** Create an online library where users can browse, search, and read books online. 
    - **Tech Stack:** HTML, CSS, JavaScript / React.js, Express.js, Node.js, MongoDB
 
-2. **[Chat Application 💬:](https://github.com/CodeMacrocosm/Chat-App)**
+2. **[Chat Application 💬:]**
    - **Description:** Develop a real-time chat application, allowing users to communicate in real-time.
    - **Tech Stack:** MongoDB, Express.js, React, Node.js
 
-3. **[URL Shortener Service 🔗:](https://github.com/CodeMacrocosm/URL-Shortener-Service)**
+3. **[URL Shortener Service 🔗:]**
    - **Description:** Create a URL shortening service to generate short URLs from long ones.
    - **Tech Stack:** HTML, CSS, JavaScript, Flask (Python) or Express.js (JavaScript), SQLite or MongoDB