function wpb_adding_scripts() {

    wp_register_script('scrolling-nav', get_stylesheet_directory_uri() . '/assets/js/scrolling-nav.js', array('jquery'),'1.1', true);

    wp_register_script('jquery-easing', get_stylesheet_directory_uri() . '/assets/js/jquery.easing.min.js', array('jquery'),'1.1', true);

    wp_register_script('scrollReveal', get_stylesheet_directory_uri() . '/assets/js/scrollreveal.js', array('jquery'),'1.1', true);

    wp_enqueue_script('scrolling-nav');
    wp_enqueue_script('jquery-easing');
    wp_enqueue_script('scrollReveal');
}

add_action( 'wp_enqueue_scripts', 'wpb_adding_scripts');