Update README.md

Author: GitEliteNovice

README.md

@@ -3,6 +3,7 @@
  [![API](https://img.shields.io/badge/API-15%2B-red.svg)](https://android-arsenal.com/api?level=15) [![Android Arsenal]( https://img.shields.io/badge/Android%20Arsenal-BottomNavigation-green.svg?style=flat )]( https://android-arsenal.com/details/1/7815 ) [![Twitter URL](https://img.shields.io/twitter/url/https/twitter.com/fold_left.svg?style=social&label=Follow%20%40elite_novice)](https://twitter.com/elite_novice)
 
 ## How this is helpful ?
+This example demostrate how to keeps a history of previous tabs so that when the current tab's stack is exhausted the system back button will navigate to the previously selected tab.
 If you want to switch between fragments with botttomnavigation view, without losing fragments state and along with if you want to maintain backstack of fragments.Then this example is for you.
 
 
@@ -11,6 +12,14 @@ If you want to switch between fragments with botttomnavigation view, without los
 
 If you want to say thanks or want to share how much you like my efforts, then you can share it with me with [![Say Thanks!](https://img.shields.io/badge/Say%20Thanks-!-1EAEDB.svg)](https://saythanks.io/to/GitEliteNovice) 
 
+ <p align="center">
+<br>
+<b>Android Example to keeps a history of previous tabs </b> 
+</p>
+ <p align="center">
+ Built with ❤︎ by <a href="https://medium.com/@EliteNovice">Aryan Dhankar</a>.  
+ </p>
+
 
 ![Webp net-resizeimage](https://user-images.githubusercontent.com/15318984/62406658-e6b3a700-b5cc-11e9-9d5e-d1938099aa12.png) ![Webp net-resizeimage (1)](https://user-images.githubusercontent.com/15318984/62406685-224e7100-b5cd-11e9-80d9-0984a98b9455.png) ![Webp net-resizeimage (2)](https://user-images.githubusercontent.com/15318984/62406707-8d984300-b5cd-11e9-98d9-175e87ee3122.png)