text: import React from 'react'
  import PropTypes from 'prop-types'
  
  const PageHeader = ({ title, className }) => (
    <header className={ className }>
      <h2>{ title }</h2>
    </header>
  )
  
  PageHeader.propTypes = {
    title: PropTypes.string.isRequired,
    className: PropTypes.string
  }
  
  export default PageHeader
  