Update the instructions for Wear OS 2.x and 3.x

README.md

@@ -9,13 +9,21 @@ Version 1.1 of the app optionally adds support for full bi-directional
 sync. To enable phone to watch sync, users need to manually set the app
 as a notification listener **on the watch** by running the following commands:
 
+## Wear OS 2.x/3.x instructions (credit to rhaeus on XDA for finding the new command):
+
+```sh
+$ adb shell cmd notification allow_listener se.blunden.donotdisturbsync/se.blunden.donotdisturbsync.DummyNotificationListener
+```
+
+## Android Wear 2.0 instructions:
+
 ```sh
 $ adb shell
 
 $ settings put secure enabled_notification_listeners com.google.android.wearable.app/com.google.android.clockwork.stream.NotificationCollectorService:se.blunden.donotdisturbsync/se.blunden.donotdisturbsync.DummyNotificationListener
 ```
 
-**NOTE:** If you have already manually added other notification listeners
+**NOTE (Only applies to Android Wear):** If you have already manually added other notification listeners
 on your watch, you need to instead read the current value and then set it
 again with *:se.blunden.donotdisturbsync/se.blunden.donotdisturbsync.DummyNotificationListener*
 added.