use correct broker setting

apps/api/README.md

@@ -42,7 +42,7 @@ docker build -t api:dev -f apps/api/Dockerfile .
 ```bash
 docker run --rm -p 8001:8001 \
   -v $(pwd)/config:/app/config:ro \
-  -e MQTT_BROKER=172.16.2.16 \
+  -e MQTT_BROKER=172.23.1.102 \
   -e MQTT_PORT=1883 \
   -e REDIS_HOST=172.23.1.116 \
   -e REDIS_PORT=6379 \