Update notify.lametric.markdown (#4017)

* Update notify.lametric.markdown

* Keep configuration sample minimal

source/_components/notify.lametric.markdown

@@ -12,17 +12,39 @@ ha_category: Notifications
 ha_release: 0.49
 ---
 
-This component allows to send notification to a LaMetric device. It need the LaMetric platform to be configured first.
+This component allows to send notification to a LaMetric device. It needs the LaMetric platform to be configured first.
 
 ```yaml
 notify:
   name: lametric1
   platform: lametric
-  display_time: 20
-  icon: i555
 ```
 
-- **name** (*Optional*): The name of the LaMetric device. Usually it is "My Lametric"
+- **name** (*Optional*): The name of the LaMetric device. Usually it is "My Lametric".
-- **display_time** (*Optional*): Defines how long the message should be displayed (in seconds).
+- **lifetime** (*Optional*): Defines how long the message remains in LaMetric notification queue (in seconds). Defaults to 10.
-- **icon** (*Optional*): An icon or animation. Check out the list of all icons her: https://developer.lametric.com/icons 
+- **icon** (*Optional*): An icon or animation. Check out the list of all icons here: https://developer.lametric.com/icons 
-Note that icons always begin with "i" while animations begin with "a". This is part of the name, you can't just use the number.
+Note that icons always begin with "i" while animations begin with "a". This is part of the name, you can't just use the number!
+- **cycles** (*Optional*): Defines how often the notification is displayed. Defaults to 1.
+
+Extended functionality:
+
+To add a notification sound or an icon override, it has to be done via service data.
+
+Example:
+
+```
+...
+- alias: 'Send notification on arrival at school'
+  trigger:
+    platform: state
+    entity_id: device_tracker.son_mobile
+    from: 'not_home'
+    to: 'school'
+  action:
+    service: notify.lametric1
+    data:
+      message: 'Son has arrived at school!'
+      data:
+        sound: 'notification'
+        icon: 'i51'
+ ```