Update community.md

docs/community.md

@@ -1,7 +1,16 @@
 # Community Contributions
 
-These are a few contributions by the community.
+## Automation Tips
 
-## Coming soon
+To call the battery replaced service from an entity trigger you will need the device_id, here's an easy way to get this
+
+```
+action:
+  - service: battery_notes.set_battery_replaced
+    data:
+      device_id: "{{ device_id(trigger.entity_id) }}"
+```
+
+## Contributing
 
 If you want to contribute then [fork the repository](https://github.com/andrew-codechimp/HA-Battery-Notes), edit this page which is in the docs folder and submit a pull request.