text: import React from 'react';
  import { NavLink } from 'react-router-dom';
  
  const Header = () => (
  	<header>
  		<h1>Portfolio</h1>
  		<NavLink to="/" activeClassName="is-active" exact={true}>Home</NavLink>
  		<NavLink to="/portfolio" activeClassName="is-active" exact={true}>Portfolio</NavLink>
  		<NavLink to="/contact" activeClassName="is-active">Contact</NavLink>
  	</header>
  );
  
  export default Header;
  