Add a top menu to an Astra child theme

functions.php

/**
 * Add additional menu
 */
function register_additional_menus() {
  register_nav_menu( 'top-menu', __( 'Top Menu' ) );
}
add_action( 'init', 'register_additional_menus' );

/**
 * Add scripts to astra_header_before
 */
function add_script_before_header() {
  ?>
  <div class="top-header-bar">
    <div class="ast-container">		
      <?php wp_nav_menu( array( 'theme_location' => 'top-menu' ) ); ?>
    </div>
  </div>
  <?php
}
add_action( 'astra_header_before', 'add_script_before_header' );