Adding stars to custom comment_template()

Hello,

I have already emailed you regarding this.
Unfortunately, I can not send you a link to the site as it’s not live yet.

This is the comments.php code that came with the theme:

<?php
// Do not access this file directly
if ( !defined('ABSPATH') ) exit;

// If passworded, must have given password
if ( post_password_required() ) return;

// If comments are closed and there are no comments already, do not show comments at all
if ( !comments_open() && !get_comments_number() ) return;
?>

<div class="comments">
	<h5>Comments (<?php comments_number( '0', '1', '%' ); ?>)</h5>
	<div class="comments-section">
		<?php if ( 'open' == $post->comment_status ) : ?>

			<?php if ( get_option( 'comment_registration' ) && !$user_ID ) : ?>

				<p class="unstyled">You must <a href="<?php echo get_option( 'siteurl' ); ?>/wp-login.php?redirect_to=<?php the_permalink(); ?>">log in</a> to post a comment.</p>

			<?php else : ?>

 				<form action="<?php echo get_option( 'siteurl' ); ?>/wp-comments-post.php" method="post" id="comment_form">
					<?php if ( $user_ID ) { ?>
						<p class="unstyled">Logged in as <a href="<?php echo get_option( 'siteurl' ); ?>/wp-admin/profile.php"><?php echo $user_identity; ?></a>.
							<a href="<?php echo wp_logout_url( get_permalink() ); ?>" title="<?php _e( 'Log out of this account' ) ?>">Logout &raquo;</a></p>
					<?php } ?>
					<?php if ( !$user_ID ) { ?>
						<input class="u-full-width" type="text" name="author" id="author" value="<?php echo $comment_author; ?>" tabindex="1" placeholder="NAME" />
						<input class="u-full-width" type="text" name="email" id="email" value="<?php echo $comment_author_email; ?>" tabindex="2" placeholder="EMAIL" />
						<input class="u-full-width" type="text" name="url" id="url" value="<?php echo $comment_author_url; ?>" tabindex="3" placeholder="WEBSITE" />
					<?php } ?>
					<textarea class="u-full-width main" name="comment" id="comment" rows="8" tabindex="4" placeholder=""></textarea>
					<?php comment_id_fields(); ?><input name="submit" type="submit" id="submit" tabindex="5" value="Post Comment..." />
					<?php do_action( 'comment_form', $post->ID ); ?>
				</form>

			<?php endif; // If registration required and not logged in ?>

		<?php endif; ?>
	</div>
	<?php if ( have_comments() ) { ?>
		<ul class="comment-block" id="comment-block">
			<?php
			// Callback defined in /_includes/functions/theme-functions.php
			wp_list_comments( 'callback=aa_list_comments' );
			?>
		</ul>
	<?php } ?>
</div>

Thank you