Merge pull request #1164 from mightyfree/patch-4

Add Drupal Commerce

README.md

@@ -490,6 +490,7 @@ _Recipe management_
 
   * [Attendize](https://www.attendize.com/) - Ticket selling and event management platform. ([Demo](https://www.attendize.com/documentation.php#demo), [Source Code](https://github.com/attendize/attendize)) `AAL` `PHP`
   * [CoreShop](https://www.coreshop.org) - CoreShop is a e-commerce plugin for Pimcore. ([Source Code](https://github.com/coreshop/CoreShop)) `GPLv3` `PHP`
+  * [Drupal Commerce](https://drupalcommerce.org) - Drupal Commerce is a popular e-commerce module for Drupal CMS, with support for dozens of payment, shipping, and shopping related modules. ([Source Code](https://github.com/drupalcommerce/commerce)) `GPLv2` `PHP`
   * [Magento](https://magento.com/) - Leading provider of open omnichannel innovation. ([Demo](https://magento.com/schedule-a-demo), [Source Code](https://github.com/magento/magento2)) `OSLv3` `PHP`
   * [Microweber](https://microweber.com/) - Drag and Drop CMS and online shop. ([Demo](http://demo.microweber.org/), [Source Code](https://github.com/microweber/microweber)) `Apache` `PHP`
   * [OpenCart](https://www.opencart.com) - Free open source shopping cart solution. ([Source Code](https://github.com/opencart/opencart)) `GPLv3` `PHP`