Use relative paths to work in docker and outside

Dockerfile

@@ -13,4 +13,4 @@ RUN apt-get update && \
 COPY hc2mqtt hc-login HCDevice.py HCSocket.py HCxml2json.py ./
 
 ENTRYPOINT ["python3"]
-CMD ["hc2mqtt", "--config", "/config/config.ini"]
+CMD ["hc2mqtt", "--config", "./config/config.ini"]

README.md

@@ -65,10 +65,10 @@ your mDNS or DNS server resolves the names correctly.
 
 ## Home Connect to MQTT
 
-Use the following config/config.ini example:
+Use the following ./config/config.ini example:
 
 ```
-devices_file = "/config/devices.json"
+devices_file = "./config/devices.json"
 mqtt_host = "localhost"
 mqtt_username = "mqtt"
 mqtt_password = "password"

compose.yaml

@@ -4,4 +4,4 @@ services:
     build: .
     restart: on-failure
     volumes:
-      - ./config:/config
+      - ./config:/app/config