improve Docker docs

Author: br0kenpixel

README.md

@@ -132,36 +132,12 @@ You can build a Docker image using the provided [`Dockerfile`](./Dockerfile).
 docker build -t pwmp-server .
 ```
 
-You can test the container using the following command:
-```sh
-# Note that the config already exists on the host!
-docker run --rm -it -v ~/.pwmp-server:/app/data:ro pwmp-server
-```
+Use the included `docker-compose.yml` for a production-ready setup with PostgreSQL and several hardened options. **Do not forget to change the database credentials!** The binary is located at `/app/pwmp-server` in the container, and the configuration file path is set to `/app/data/config.yml`.
 
-Alternatively, here is a minimal `docker-compose.yml` example:
-```yaml
-services:
-  pwmp-server:
-    image: ghcr.io/pixelweatherproject/pwmp-server:latest
-    command: "--debug"
-    logging:
-      driver: json-file
-      options:
-        max-size: "10m"
-        max-file: "5"
-    deploy:
-      resources:
-        limits:
-          cpus: 1.0
-          memory: 1024M
-    ports:
-      - "55300:55300/tcp"
-    volumes:
-      - ./config.yml:/app/data/config.yml:ro
-    restart: unless-stopped
+To run the necessary database migrations, you can use the following command:
+```sh
+docker compose exec pwmp-server /app/pwmp-server --config /app/data/config.yml database init
 ```
 
-> **Note**: The above example is minimal and does not include a database container. You will need to set up a separate container for the database and configure the server accordingly.
-
 ## Proxies
 The server has been tested behind a reverse proxy using Nginx Proxy Manager stream, however, it caused some level of instability. Using reverse proxies is not recommended, as they may interfere with the custom socket optimizations.