Imporve composer to packagist

Author: Willian Keller

README.md

@@ -1,6 +1,6 @@
 # Split Order for Magento 2
 
-(https://img.shields.io/packagist/v/magestat/module-split-order.svg)](https://packagist.org/packages/magestat/module-split-order) [![Packagist]
+[![Packagist](https://img.shields.io/packagist/v/magestat/module-split-order.svg)](https://packagist.org/packages/magestat/module-split-order)
 
 This extension allows your online store to split the order into an order
 for each item in the cart. With different order ids, customers can view all the