Enhance README.md with detailed API documentation and usage instructions

Author: Anof-cyber

README.md

@@ -1,2 +1,32 @@
 # API-Doc
 API Documentation for APTRS
+
+## About This API Collection
+This repository contains the complete API documentation for APTRS (Automated Penetration Testing Reporting System) in Bruno format. The collection provides endpoints for all APTRS functionality organized by domain areas.
+
+## Using the Bruno Collection
+To use this API collection:
+
+1. Download and install [Bruno](https://www.usebruno.com/) - an open-source API client
+2. Clone this repository: `git clone <repository-url>`
+3. Open Bruno and use "Open Collection" to navigate to the cloned `APTRS` folder
+4. Select the `APTRS.bru` environment file in the environments folder to configure your base URL and authentication
+
+## Collection Structure
+The API collection is organized into the following main sections:
+
+- **Account** - Authentication, user management, and profile operations
+- **Company** - Company management and customer portal APIs
+- **Customer** - Customer management operations
+- **Project** - Project management, reports, scope, and vulnerability operations
+- **Config APIs** - System configuration and status endpoints
+- **Vulnerability Database** - Template and vulnerability data management
+
+## Contributing
+To contribute to this API documentation:
+1. Make your changes in Bruno
+2. Export the collection (if needed)
+3. Submit a pull request with your changes
+
+## Support
+For questions about the API documentation or issues with the collection, please open an issue in this repository.