docs: Update README.md

Author: bezzang-dev

README.md

@@ -1 +1,65 @@
-# spring-security-jwt
+# spring-security-jwt
+
+This repository contains an example Spring project implementing authentication and authorization using Spring Security with JWT. The project provides a set of APIs for user registration, login, and role-based access control.
+
+## Features
+
+- **User Registration**: Allows new users to sign up by providing necessary details.
+- **User Login**: Authenticates users and provides a JWT token for subsequent requests.
+- **Role-Based Access Control**: Access control for specific endpoints based on user roles (`MASTER` and `USER`).
+
+## APIs
+
+The following endpoints are available:
+
+- **User Signup**  
+  - **Endpoint**: `/signup`
+  - **Method**: `POST`
+  - **Description**: Registers a new user.
+  - **Request Body**: `SignupRequestDto` (required)
+
+- **User Login**  
+  - **Endpoint**: `/sign`
+  - **Method**: `POST`
+  - **Description**: Authenticates a user and returns a JWT token.
+  - **Request Body**: `LoginRequestDto` (required)
+
+- **Admin Only Access**  
+  - **Endpoint**: `/admin`
+  - **Method**: `GET`
+  - **Description**: Grants access to users with the `MASTER` role.
+  - **Authorization**: Requires `MASTER` role.
+
+- **User Only Access**  
+  - **Endpoint**: `/user`
+  - **Method**: `GET`
+  - **Description**: Grants access to users with the `USER` role.
+  - **Authorization**: Requires `USER` role.
+
+## Setup Instructions
+
+1. **Development Environment**  
+   To run the project in a development environment, execute the following:
+   ```bash
+   docker-compose -f docker-compose.dev.yml up
+   ```
+
+2. **Production Deployment**  
+   To deploy in production, update the `.env` file with appropriate production configurations, then run:
+   ```bash
+   docker-compose -f docker-compose.prod.yml up
+   ```
+
+## API Documentation
+
+The project includes Swagger API documentation, accessible at:
+```
+/docs
+```
+
+## Dependencies
+
+- Spring Boot
+- Spring Security
+- JWT
+- Swagger (for API documentation)