text: import React from "react";
  import { Link } from 'react-router-dom'
  
  function Nav() {
      return (
          <div className="container-fluid bg-dark">
              <nav className="navbar navbar-expand-lg navbar-dark bg-dark">
                  <div className="container-fluid">
                      <Link className="navbar-brand" to="/">Google Books Search</Link>
                      <button className="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarTogglerDemo02" aria-controls="navbarTogglerDemo02" aria-expanded="false" aria-label="Toggle navigation">
                          <span className="navbar-toggler-icon"></span>
                      </button>
                      <div className="collapse navbar-collapse" id="navbarTogglerDemo02">
                          <ul className="navbar-nav mr-auto mb-2 mb-lg-0">
                              <li className="nav-item">
                                  <Link className="nav-link active" aria-current="page" to="/">Search</Link>
                              </li>
                              <li className="nav-item">
                                  <Link className="nav-link" to="/saved">My Books</Link>
                              </li>
                          </ul>
                      </div>
                  </div>
              </nav>
          </div>
      )
  }
  
  export default Nav;