Update README.md

Author: bayareawebpro

README.md

@@ -1,6 +1,7 @@
 # Laravel Simple CSV
 
 ![](https://github.com/bayareawebpro/laravel-simple-csv/workflows/ci/badge.svg)
+![](https://codecov.io/gh/bayareawebpro/laravel-simple-csv/branch/master/graph/badge.svg)
 ![](https://img.shields.io/github/v/release/bayareawebpro/laravel-simple-csv.svg)
 ![](https://img.shields.io/packagist/dt/bayareawebpro/laravel-simple-csv.svg)
 ![](https://img.shields.io/badge/License-MIT-success.svg)