docs: Add Android notification to warning

README.md

@@ -9,7 +9,7 @@
 React Native background service library for running **background tasks forever in Android & iOS**. Schedule a background job that will run your JavaScript when your app is in the background or foreground.
 
 ### WARNING
-- **Android**: This library relies on React Native's [`HeadlessJS`](https://facebook.github.io/react-native/docs/headless-js-android) for Android. Before building your JS task, make sure to read all the [documentation](https://facebook.github.io/react-native/docs/headless-js-android). The jobs will run even if the app has been closed. [In Android 12+](https://developer.android.com/guide/components/foreground-services#background-start-restrictions) you will not be able to launch background tasks from the background.
+- **Android**: This library relies on React Native's [`HeadlessJS`](https://facebook.github.io/react-native/docs/headless-js-android) for Android. Before building your JS task, make sure to read all the [documentation](https://facebook.github.io/react-native/docs/headless-js-android). The jobs will run even if the app has been closed. [In Android 12+](https://developer.android.com/guide/components/foreground-services#background-start-restrictions) you will not be able to launch background tasks from the background. A notification will be shown when the task is running, it is not possible to start the service without it. The notification will only be visible in Android.
 
 - **iOS**: This library relies on iOS's [`UIApplication beginBackgroundTaskWithName` method](https://developer.apple.com/documentation/uikit/uiapplication/1623051-beginbackgroundtaskwithname?language=objc), which **won't keep your app in the background forever** by itself. However, you can rely on other libraries like [`react-native-track-player`](https://github.com/react-native-kit/react-native-track-player) that use audio, geolocalization, etc. to keep your app alive in the background while you excute the JS from this library.