Update README.md

Author: PasanBhanu

README.md

@@ -1,8 +1,15 @@
+<p align="center">
+  <img src="https://i.ibb.co/hFY4LgG/laravel-keyvalue-storage.jpg" alt="laravel keyvalue storage">
+</p>
 
+<div align="center">
+  
 [![Latest Version on Packagist](https://img.shields.io/packagist/v/SoftinkLab/laravel-keyvalue-storage)](https://packagist.org/packages/softinklab/laravel-keyvalue-storage)
 [![Total Downloads](https://img.shields.io/packagist/dt/SoftinkLab/laravel-keyvalue-storage)](https://packagist.org/packages/softinklab/laravel-keyvalue-storage)
 [![Software License](https://img.shields.io/packagist/l/SoftinkLab/laravel-keyvalue-storage)](LICENSE.md)
 [![Build Status](https://img.shields.io/travis/SoftinkLab/laravel-keyvalue-storage)](https://travis-ci.org/SoftinkLab/laravel-keyvalue-storage)
+  
+</div>
 
 ## Introduction