Update main.js

Author: yashovardhan

src/main.js

@@ -1 +1,7 @@
-console.log('Addy React');
+import React from 'react';
+import ReactDOM from 'react-dom';
+import Counter from './Counter';
+
+document.addEventListener('DOMContentLoaded', function() {
+  ReactDOM.render(React.createElement(Counter), document.getElementById('mount'));
+});