text: import React from 'react';
  import { Link } from 'gatsby'
  
  const Header = () => {
      return (
          <header>
              <nav>
                  <ul>
                      <li>
                      <Link to="/">Home</Link>
                      </li>
                      <li>
                      <Link to="/blog">Blog</Link>
                      </li>
                      <li>
                      <Link to="/about">About</Link>
                      </li>
                      <li>
                      <Link to="/contact">Contact</Link>
                      </li>
                  </ul>
              </nav>
              <Link></Link>
              <Link></Link>
              
          </header>
      );
  };
  
  export default Header;