Added docker compose to README and some Environment fixes

.env

@@ -1,4 +1,4 @@
-MQTT_BROKER_URI=tcp://localhost:1833
+MQTT_BROKER_URI=tcp://localhost:1883
 MQTT_USERNAME=mqtt_user
 MQTT_PASSWORD=secret
 SAIC_USERNAME=me@home.da

README.md

@@ -145,8 +145,22 @@ from [docker hub](https://hub.docker.com/r/saicismartapi/saic-python-mqtt-gatewa
 $ docker build -t saic-mqtt-gateway .
 ```
 
+#### Use docker compose
+
 There is a [docker compose file](docker-compose.yml) that shows how to set up the service.
 
+First setup the hidden ".env" file in the root directory of the project with your specific data
+
+Test your setup with
+```
+$ docker compose up
+```
+
+Let it run in background (dedicated)
+```
+$ docker compose up -d
+```
+
 ## Commands over MQTT
 
 The MQTT Gateway subscribes to MQTT topics where it is listening for commands. Every topic in the table below starts

docker-compose.yml

@@ -3,11 +3,12 @@ services:
     image: "saicismartapi/saic-python-mqtt-gateway:latest"
     build:
       context: .
+    restart: always
     container_name: "saic-mqtt-gateway"
     environment:
       - MQTT_URI=${MQTT_BROKER_URI}
       - MQTT_USER=${MQTT_USERNAME}
-      - MQTT_PASSWORD=${MQTT_PWD}
+      - MQTT_PASSWORD=${MQTT_PASSWORD}
       - SAIC_USER=${SAIC_USERNAME}
       - SAIC_PASSWORD=${SAIC_PWD}
     volumes: