update code language in readme

Author: icebob

README.md

@@ -158,7 +158,7 @@ export default {
 ```
 
 Usage in local components
-```
+```js
 import VueFormGenerator from "vue-form-generator";
 
 //component javascript
@@ -208,4 +208,4 @@ vue-form-generator is available under the [MIT license](https://tldrlegal.com/li
 
 Copyright (C) 2017 Icebob
 
-[![@icebob](https://img.shields.io/badge/github-icebob-green.svg)](https://github.com/icebob) [![@icebob](https://img.shields.io/badge/twitter-Icebobcsi-blue.svg)](https://twitter.com/Icebobcsi)
+[![@icebob](https://img.shields.io/badge/github-icebob-green.svg)](https://github.com/icebob) [![@icebob](https://img.shields.io/badge/twitter-Icebobcsi-blue.svg)](https://twitter.com/Icebobcsi)