feat: add postman documentation for the server

Author: IbrahimHamshari

README.md

@@ -85,6 +85,15 @@ npm install
 npm run dev
 ```
 
+## API Documentation 📜
+
+Our API is designed to give you access to all core functionalities of DevHub programmatically. You can interact with the platform's matchmaking, user profile creation, and project exploration features via HTTP requests. To get started with the API, please refer to our Postman documentation, which provides detailed information on all available endpoints.
+
+<a href="https://documenter.getpostman.com/view/37803453/2sAXxP9Cxo" target="_blank"><img src="https://img.shields.io/badge/Postman-View%20Documentation-orange?style=flat&logo=postman" /></a>
+
+For the full API documentation, visit the following link:  
+[Postman API Documentation](https://documenter.getpostman.com/view/37803453/2sAXxP9Cxo)
+
 ## Conclusion 🎉
 By integrating LLMs for natural language understanding, LangChain for workflow enhancement, and Neo4j for advanced data storage and querying, DevHub offers a comprehensive solution for devs seeking meaningful collaborations. This combination not only enhances user experience but also ensures that connections are based on relevant skills and interests, leading to more effective teamwork.