Updates basic usage with valid mp3 path.

Author: chadpaulson

README.md

@@ -19,7 +19,7 @@ var React = require('react')
 var ReactDOM = require('react-dom')
 var Cassette = require('react-cassette-player')
 
-var audio = 'http://static.echonest.com/audio2/01%20-%20Virginia%20Reel%20Around%20The%20Fountain.mp3'
+var audio = 'https://wavves.s3.amazonaws.com/la.mp3'
 ReactDOM.render(<Cassette src={audio} />, document.body)
 ```
 
@@ -52,4 +52,4 @@ SVG icons used by react-cassette-player are licensed [Creative Commons (CC BY 3.
 
 ## Motivation
 
-Desire to build a functional [Noun](http://thenounproject.com) while experimenting with React SVG support. [Feedback and contributions](https://github.com/chadpaulson/react-cassette-player/issues/new) are welcome.
+Desire to build a functional [Noun](http://thenounproject.com) while experimenting with React SVG support. [Feedback and contributions](https://github.com/chadpaulson/react-cassette-player/issues/new) are welcome.