Update README.md

Author: amitshekhariitbhu

README.md

@@ -302,6 +302,8 @@
 
 * **Explain Work Manager in Android.** - [Learn from here](https://blog.mindorks.com/integrating-work-manager-in-android)
 
+* **Use-cases of WorkManager in Android.** - [Learn from here](https://www.youtube.com/watch?v=4LTpYXFMnJw)
+
 #### Others
 
 * **Why Bundle class is used for data passing and why cannot we use simple Map data structure?** - [Learn from here](https://developer.android.com/guide/components/activities/parcelables-and-bundles)