text: import React from 'react';
  import { Link } from 'react-router-dom';
  import * as ROUTES from '../../constants/routes';
  
  import { withFirebase } from '../Firebase';
  
  
  
  const SignOutButton = ({ firebase }) => ( 
        <Link className="nav-link" onClick={firebase.doSignOut}  to={ROUTES.SIGN_IN}>
          Sign Out
        </Link>  
  );
  export default withFirebase(SignOutButton);