use correct broker setting

apps/simulator/README.md

@@ -53,7 +53,7 @@ docker build -t simulator:dev -f apps/simulator/Dockerfile .
 
 ```bash
 docker run --rm -p 8010:8010 \
-  -e MQTT_BROKER=172.16.2.16 \
+  -e MQTT_BROKER=172.23.1.102 \
   -e MQTT_PORT=1883 \
   -e SIM_PORT=8010 \
   simulator:dev
@@ -61,11 +61,9 @@ docker run --rm -p 8010:8010 \
 
 **Mit Docker Network (optional):**
 ```bash
-docker network create home-automation
 docker run --rm -p 8010:8010 \
-  --network home-automation \
   --name simulator \
-  -e MQTT_BROKER=172.16.2.16 \
+  -e MQTT_BROKER=172.23.1.102 \
   simulator:dev
 ```