Add Travis badge

Author: scriptex

README.md

@@ -4,6 +4,7 @@
 [![GitHub issues](https://img.shields.io/github/issues/scriptex/html5-form-validator.svg)](https://github.com/scriptex/html5-form-validator/issues)
 [![GitHub last commit](https://img.shields.io/github/last-commit/scriptex/html5-form-validator.svg)](https://github.com/scriptex/html5-form-validator/commits/master)
 [![Github file size](https://img.shields.io/github/size/scriptex/html5-form-validator/dist/index.min.js.svg)](https://github.com/scriptex/html5-form-validator)
+[![Build Status](https://travis-ci.org/scriptex/html5-form-validator.svg?branch=master)](https://travis-ci.org/scriptex/html5-form-validator)
 [![npm](https://img.shields.io/npm/dt/html5-form-validator.svg)](https://www.npmjs.com/package/html5-form-validator)
 [![npm](https://img.shields.io/npm/v/html5-form-validator.svg)](https://www.npmjs.com/package/html5-form-validator)
 [![license](https://img.shields.io/github/license/scriptex/html5-form-validator.svg)](https://github.com/scriptex/html5-form-validator)
@@ -52,12 +53,12 @@ or supply your own
 const form = document.querySelector('#form');
 
 new html5formValidation(form, {
-  errorElement: 'form__error',
-  invalidClass: 'is--invalid',
-  submitHandler(instance) {
-    console.log(instance)
-  },
-  validateOnInput: false
+	errorElement: 'form__error',
+	invalidClass: 'is--invalid',
+	submitHandler(instance) {
+		console.log(instance);
+	},
+	validateOnInput: false
 });
 ```