Update Readme.md

Author: TutorialsAndroid

Readme.md

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 # FilePicker ![API](https://img.shields.io/badge/API-21%2B-brightgreen.svg?style=flat) [![License](https://img.shields.io/badge/License-Apache%202.0-orange.svg)](https://opensource.org/licenses/Apache-2.0) [![Android Arsenal](https://img.shields.io/badge/Android%20Arsenal-FilePicker-yellow.svg?style=flat)](https://android-arsenal.com/details/1/7663) 
 Android Library to select files/directories from Device Storage
 
+## Download Our New App
+
+[Cocktail Friendship App](https://play.google.com/store/apps/details?id=developer.cocktail)
+
 ## Contributors
 
 [M&R Games](https://github.com/mrgames13)