docs: fix docker command

README.md

@@ -16,7 +16,7 @@ Start by going into the `/webapp` folder, making a copy of the `.env.example` fi
 To run the project, you can use the following commands:
 
 ```bash
-docker compose --env-file ./webapp/.env up --build -d
+docker compose --env-file ./webapp/.env  --env-file ./backend/.env up --build -d
 ```
 
 This command will build the Docker images (if necessary) and run the containers in the background. You can access the clientside code at [http://localhost:3000](http://localhost:3000) and the API at [http://localhost:8000](http://localhost:8000).