docs: add shield.io badges to README.md

Author: kevinkosterr

README.md

@@ -1,6 +1,12 @@
 # Vue 3 Form Generator
+![GitHub last commit](https://img.shields.io/github/last-commit/kevinkosterr/vue3-form-generator?logo=github)
+![Static Badge](https://img.shields.io/badge/Vue%20version-3.x.x-green?logo=vue.js)
+![NPM Version](https://img.shields.io/npm/v/%40kevinkosterr%2Fvue3-form-generator?logo=npm)
+![GitHub License](https://img.shields.io/github/license/kevinkosterr/vue3-form-generator)
+<br>
 A schema-based form generator component for Vue 3, based on `vue-form-generator`
 
+
 ## Basic usage
 1. Install plugin in your Vue app, this will make all necessary components globally available in your app.
 ```javascript