Adjust config and service examples

config.yaml.example

@@ -3,7 +3,7 @@ mqtt:
   port: 1883
   username: ""               # leave empty if broker has no auth
   password: ""
-  topic_prefix: "" # base topic: {topic_prefix}/{hostname}/...
+  topic_prefix: "monitor-py" # base topic: {topic_prefix}/{hostname}/...
   client_id: ""              # leave empty to auto-generate from hostname
 
 monitor:

monitor.service.example

@@ -6,8 +6,8 @@ Wants=network-online.target
 [Service]
 Type=simple
 User=USERNAME
-WorkingDirectory=/home/USERNAME/monitor
-ExecStart=/usr/bin/python3 /home/USERNAME/monitor/monitor.py
+WorkingDirectory=/opt/monitor-py
+ExecStart=/usr/bin/python3 /opt/monitor-py/monitor.py
 # Required for xprintidle to query the X server for session idle time.
 # Adjust :0 if your display is on a different number (check 'echo $DISPLAY').
 Environment=DISPLAY=:0