Update README.md

Author: SebKay

README.md

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 # Laravel / Inertia (Vue) – Template
 
-[![PHP](https://github.com/SebKay/laravel-inertia-template/actions/workflows/php.yml/badge.svg)](https://github.com/SebKay/laravel-inertia-template/actions/workflows/php.yml)
+[![Test](https://github.com/SebKay/laravel-inertia-template/actions/workflows/test.yml/badge.svg)](https://github.com/SebKay/laravel-inertia-template/actions/workflows/test.yml)
 
 A starter project for Laravel apps using Inertia and Vue.js.