Update README with project details and license

Added project structure, license information, and badges.

Author: jaayysoni

README.md

@@ -1,5 +1,17 @@
 # Event-Driven Notification System
 
+![Python](https://img.shields.io/badge/Python-3776AB?style=for-the-badge&logo=python&logoColor=white)
+![FastAPI](https://img.shields.io/badge/FastAPI-009688?style=for-the-badge&logo=fastapi&logoColor=white)
+![Swagger UI](https://img.shields.io/badge/Swagger_UI-85EA2D?style=for-the-badge&logo=swagger&logoColor=black)
+![PostgreSQL](https://img.shields.io/badge/PostgreSQL-336791?style=for-the-badge&logo=postgresql&logoColor=white)
+![RabbitMQ](https://img.shields.io/badge/RabbitMQ-FF6600?style=for-the-badge&logo=rabbitmq&logoColor=white)
+![Celery](https://img.shields.io/badge/Celery-37814A?style=for-the-badge&logo=celery&logoColor=white)
+![SendGrid](https://img.shields.io/badge/SendGrid-1A82E2?style=for-the-badge&logo=sendgrid&logoColor=white)
+![REST API](https://img.shields.io/badge/REST_API-02569B?style=for-the-badge)
+![API](https://img.shields.io/badge/API-000000?style=for-the-badge)
+![Docker](https://img.shields.io/badge/Docker-2496ED?style=for-the-badge&logo=docker&logoColor=white)
+![GitHub Actions](https://img.shields.io/badge/GitHub_Actions-2088FF?style=for-the-badge&logo=github-actions&logoColor=white)
+
 ## Project Overview
 
 This project is a scalable backend notification system that sends an email every time a user logs in.
@@ -129,3 +141,13 @@ Event-Driven-Notification-System/
 └── README.md                     # Project documentation
 
 ```
+---
+
+## License
+
+This project is licensed under the MIT License.
+
+You are free to use, modify, and distribute this software in accordance with the license terms.
+
+See the `LICENSE` file for full details.
+