old_contents: import React from 'react';
  
  export default function BaseLayout(props) {
  	return (
  		<main>
  			{props.content}
  		</main>
  	);
  }
  
  MainLayout.propTypes = {
  	content: React.PropTypes.element
  };
  
new_contents: import React from 'react';
  
  export default function BaseLayout(props) {
  	return (
  		<main>
  			{props.content}
  		</main>
  	);
  }
  
  BaseLayout.propTypes = {
  	content: React.PropTypes.element
  };
  
subject: fix baselayout naming error