remove homepage link for opensourcepos

- website not responding/timeout
- ref. https://github.com/awesome-selfhosted/awesome-selfhosted/issues/2266

README.md

@@ -804,7 +804,7 @@ _Related: [Community-Supported Agriculture (CSA)](#community-supported-agricultu
 - [Magento Open Source](https://github.com/magento/magento2) - Leading provider of open omnichannel innovation. `OSL-3.0` `PHP`
 - [MedusaJs](https://medusajs.com/) - Medusa is an open-source headless commerce engine that enables developers to create amazing digital commerce experiences. ([Demo](https://demo.medusajs.com/a/orders?offset=0&limit=15), [Source Code](https://github.com/medusajs/medusa)) `MIT` `Nodejs`
 - [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://www.opensourcepos.org/) - Open Source Point of Sale is a web based point of sale system. ([Source Code](https://github.com/opensourcepos/opensourcepos)) `MIT` `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`
 - [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`