PHP new line between image and text

I checked a related question and I saw the syntax for a new line is:

"\r\n"

However, I don't know how to add that to the code of my website:

<h2><span>Sneak peak</span></h2>
<ul>
<?php query_posts('orderby=post_date&posts_per_page= 6'); if ( have_posts() ) :  while ( have_posts() ) : the_post(); ?>

<li>

<h3 class="short_title"><a title="Post: <?php the_title(); ?>" href="<?php the_permalink(); ?>"><?php echo ShortTitle(get_the_title()); ?> </a></h3>

<a href="<?php the_permalink(); ?>"><?php getImage('1'); ?></a>

<a href="<?php the_permalink(); ?>"><?php echo limit_words(get_the_excerpt(), '6');
        echo '...</a>';
        echo '</li>'; ?></a>

<?php endwhile; ?></li>
<?php else : ?>
<p>Sorry, no posts were found.</p>
<?php endif; ?>


</ul>

This is my website, and what I want to do is putting the text down the images in "Sneak peak" in a new line.

Thanks a lot :)