content: import React from 'react';
  import { Link } from 'react-router';
  
  const Thumbnail = ({ thumbnailURL }) => (
    <div className="thumbnail">
      <img src={thumbnailURL} />
    </div>
  );
  
  Thumbnail.propTypes = {
    thumbnailURL: React.PropTypes.string.isRequired
  };
  
  export default Thumbnail;
  