Add link in footer

This is what my footer looks like now:

<?php
/**
* The template for displaying the footer.
*
* Contains footer content and the closing of the
* #main and #page div elements.
*
* @package WordPress
* @subpackage Twenty_Twelve
* @since Twenty Twelve 1.0
*/
?>
</div><!– #main .wrapper –>
<footer id=”colophon” role=”contentinfo”>
<div class=”site-info”>
<?php do_action( ‘twentytwelve_credits’ ); ?>

<p>Sponsored and Powered by Exabytes Singapore</p>

I would like to include the link to Exabytes but I have no idea how I should do it.