Bootstrap menu in WordPress

gistfile1.phtml

<?php
/*
    Update button's data-target="#wpk-top-menu" attribute to match the wp_nav_menu's container_id key
*/
?>
<nav class="navbar navbar-inverse navbar-fixed-top" role="navigation">
    <div class="container">
        <div class="navbar-header">
            <button type="button" class="navbar-toggle collapsed" data-toggle="collapse"
                    data-target="#wpk-top-menu" aria-expanded="false" aria-controls="navbar">
                <span class="sr-only"><?php _e('Toggle navigation', 'TEXT_DOMAIN');?></span>
                <span class="icon-bar"></span>
                <span class="icon-bar"></span>
                <span class="icon-bar"></span>
            </button>
            <a class="navbar-brand" href="#"><?php _e('Project Name', 'TEXT_DOMAIN');?></a>
        </div>
        <?php wp_nav_menu( array(
            'theme_location' => 'primary', // @see: register_sidebar()
            'menu_id' => 'primary-menu',
            'container_id'=>'wpk-top-menu',
            'container_class'=>'collapse navbar-collapse',
            'menu_class'=>'nav navbar-nav',
        ) ); ?>
    </div>
</nav>