Fix ppen typo

README.md

@@ -570,7 +570,7 @@ _Recipe management_
 - [Saleor](http://getsaleor.com/) - Django based open-sourced e-commerce storefront. ([Demo](https://demo.getsaleor.com/), [Source Code](https://github.com/mirumee/saleor)) `BSD-3-Clause` `Python`
 - [Sharetribe](https://www.sharetribe.com) - An open source platform to create your own peer-to-peer marketplace, also available with SaaS model. ([Source Code](https://github.com/sharetribe/sharetribe)) `MIT` `Ruby`
 - [Shuup](https://www.shuup.com/) - Django powered fully customizable open source e-commerce framework for small and large sites. ([Source Code](https://github.com/shuup/shuup)) `AGPL-3.0` `Python`
-- [Shopware Community Edition](https://shopware.com/community/) - PHP based ppen source e-commerce software made in Germany. ([Demo](https://www.shopwaredemo.de/), [Source Code](https://github.com/shopware/shopware)) `AGPL-3.0` `PHP`
+- [Shopware Community Edition](https://shopware.com/community/) - PHP based open source e-commerce software made in Germany. ([Demo](https://www.shopwaredemo.de/), [Source Code](https://github.com/shopware/shopware)) `AGPL-3.0` `PHP`
 - [Sylius](http://sylius.org/) - Symfony2 powered open source full-stack platform for eCommerce. ([Demo](http://sylius.org/demo), [Source Code](https://github.com/Sylius/Sylius)) `MIT` `PHP`
 - [Thelia](http://thelia.net/) - Thelia is an open source and flexible e-commerce solution. ([Demo](http://demo.thelia.net/), [Source Code](https://github.com/thelia/thelia)) `LGPL-3.0` `PHP`
 - [WooCommerce](https://www.woothemes.com/woocommerce/) - WordPress based e-commerce solution. ([Source Code](https://github.com/woothemes/woocommerce)) `GPL-3.0` `PHP`