update OXID eShop homepage link

- point to the english version

README.md

@@ -805,7 +805,7 @@ _Related: [Community-Supported Agriculture (CSA)](#community-supported-agricultu
 - [Microweber](https://microweber.com/) - Drag and Drop CMS and online shop. ([Demo](https://demo.microweber.org/), [Source Code](https://github.com/microweber/microweber)) `Apache-2.0` `PHP`
 - [Open Source POS](https://github.com/opensourcepos/opensourcepos) - Open Source Point of Sale is a web based point of sale system. `MIT` `PHP`
 - [OpenCart](https://www.opencart.com) - Free open source shopping cart solution. ([Source Code](https://github.com/opencart/opencart)) `GPL-3.0` `PHP`
-- [OXID eShop](https://oxidforge.org) - OXID eShop is a flexible open source e-commerce software with a wide range of functionalities. ([Source Code](https://github.com/OXID-eSales/oxideshop_ce)) `GPL-3.0` `PHP`
+- [OXID eShop](https://oxidforge.org/en/) - OXID eShop is a flexible open source e-commerce software with a wide range of functionalities. ([Source Code](https://github.com/OXID-eSales/oxideshop_ce)) `GPL-3.0` `PHP`
 - [PrestaShop](https://www.prestashop.com/) - PrestaShop offers a free, open-source and fully scalable e-commerce solution. ([Demo](https://demo.prestashop.com/), [Source Code](https://github.com/PrestaShop/PrestaShop)) `OSL-3.0` `PHP`
 - [Pretix](https://pretix.eu/) - Django based ticket sales platform for events. ([Source Code](https://github.com/pretix)) `Apache-2.0` `Python`
 - [Reaction Commerce](https://reactioncommerce.com/) - Customizable, real-time reactive, Javascript commerce platform. ([Source Code](https://github.com/reactioncommerce/reaction)) `GPL-3.0` `Nodejs`