feat: add functional-tests badge to readme.md (#95)

Author: dermatz

README.md

@@ -2,7 +2,7 @@
 
 ![Mageforge Hero](./.github/assets/mageforge-hero.jpg)
 
-[![Release](https://img.shields.io/github/v/release/OpenForgeProject/mageforge)](https://github.com/OpenForgeProject/mageforge/releases) [![License](https://img.shields.io/badge/license-GPL--3.0-blue.svg)](LICENSE) [![CodeFactor](https://www.codefactor.io/repository/github/openforgeproject/mageforge/badge)](https://www.codefactor.io/repository/github/openforgeproject/mageforge) [![Magento Compatibility Test](https://github.com/OpenForgeProject/mageforge/actions/workflows/magento-compatibility.yml/badge.svg)](https://github.com/OpenForgeProject/mageforge/actions/workflows/magento-compatibility.yml)
+[![Release](https://img.shields.io/github/v/release/OpenForgeProject/mageforge)](https://github.com/OpenForgeProject/mageforge/releases) [![License](https://img.shields.io/badge/license-GPL--3.0-blue.svg)](LICENSE) [![CodeFactor](https://www.codefactor.io/repository/github/openforgeproject/mageforge/badge)](https://www.codefactor.io/repository/github/openforgeproject/mageforge) [![Magento Compatibility Test](https://github.com/OpenForgeProject/mageforge/actions/workflows/magento-compatibility.yml/badge.svg)](https://github.com/OpenForgeProject/mageforge/actions/workflows/magento-compatibility.yml) [![Magento Functional Tests](https://github.com/OpenForgeProject/mageforge/actions/workflows/functional-tests.yml/badge.svg)](https://github.com/OpenForgeProject/mageforge/actions/workflows/functional-tests.yml)
 
 
 MageForge is a powerful CLI front-end development toolkit for Magento 2 that simplifies theme development workflows. It provides tools for many types of Magento themes and can be easily extended for your custom theme. With MageForge, themes can be built lightning fast, without your developers having to worry about the details. MageForge eliminates complex configuration requirements and significantly reduces setup time, allowing Magento developers to focus on creative aspects instead of struggling with build processes.