Fix tests.

docs/integration/home_assistant.md

@@ -1148,6 +1148,20 @@ sensor:
     json_attributes: 
       - "linkquality"
       - "last_seen"
+
+sensor:
+  - platform: "mqtt"
+    state_topic: "zigbee2mqtt/<FRIENDLY_NAME>"
+    availability_topic: "zigbee2mqtt/bridge/state"
+    unit_of_measurement: "%"
+    device_class: "battery"
+    value_template: "{{ value_json.battery }}"
+    json_attributes: 
+      - "linkquality"
+      - "voltage"
+      - "action"
+      - "sensitivity"
+      - "last_seen"
 ```
 {% endraw %}