Update README with database path information

Added information about the storage directory and updated installation instructions with database setup steps.

generated with BackendIM... (backend.im)

README.md

@@ -24,6 +24,8 @@ A FastAPI-based service for user authentication and management.
 │   ├── database.py           # Database connection setup
 │   ├── models.py             # SQLAlchemy models
 │   └── schemas.py            # Pydantic schemas
+├── storage/                  # Storage directory
+│   └── db/                   # Database files
 ├── alembic.ini               # Alembic configuration
 ├── main.py                   # Application entry point
 └── requirements.txt          # Project dependencies
@@ -55,17 +57,29 @@ A FastAPI-based service for user authentication and management.
    pip install -r requirements.txt
    ```
 
-3. Run the application:
+3. Make sure the storage directory exists:
+   ```
+   mkdir -p storage/db
+   ```
+
+4. Run the database migrations:
+   ```
+   alembic upgrade head
+   ```
+
+5. Run the application:
    ```
    uvicorn main:app --reload
    ```
 
-4. Access the API documentation at `http://localhost:8000/docs`
+6. Access the API documentation at `http://localhost:8000/docs`
 
 ## Database
 
 The application uses SQLite as the database with SQLAlchemy ORM. Database migrations are managed with Alembic.
 
+The database file is stored in the `storage/db` directory at the project root. This path is configured in `app/database.py` and `alembic/env.py`.
+
 ### Creating a Migration
 
 ```bash