text: import { Link } from "gatsby"
  import PropTypes from "prop-types"
  import React from "react"
  
  const Header = ({ siteTitle }) => (
      <header>
          <div>
              <h1 className="sitetitle">
                  <Link to="/" >
                      {siteTitle}
                  </Link>
              </h1>
          </div>
      </header>
  )
  
  Header.propTypes = {
      siteTitle: PropTypes.string,
  }
  
  Header.defaultProps = {
      siteTitle: ``,
  }
  
  export default Header
  