Improve example

Author: Takeharu Oshida

README.md

@@ -1,6 +1,7 @@
 # React-web-notification [![Build Status](https://travis-ci.org/georgeOsdDev/react-web-notification.svg?branch=develop)](https://travis-ci.org/georgeOsdDev/react-web-notification) [![npm version](https://badge.fury.io/js/react-web-notification.svg)](http://badge.fury.io/js/react-web-notification)
 
 React component with [HTML5 Web Notification API](https://developer.mozilla.org/en/docs/Web/API/notification).
+This component show nothing in dom element, but trigger HTML5 Web Notification API with `render` method in the life cycle of React.js.
 
 ## Demo
 

example/app.js

@@ -51,6 +51,10 @@ class App extends React.Component {
 
   handleButtonClick() {
 
+    if(this.state.ignore) {
+      return;
+    }
+
     const now = Date.now();
 
     const title = 'React-Web-Notification' + now;