Edit the output of the author box with Genesis

functions.php

<?php
// Paste the code BELOW this line into your child theme functions.

/**
 * Edit the output of the author box with Genesis
 *
 * @author Reasons to Use Genesis
 * @link http://reasonstousegenesis.com/author-box-filter/
 */
add_filter( 'genesis_author_box', 'rtug_author_box_filter' );
function rtug_author_box_filter( $output ) {
	
	// change h1 to h2
	return str_replace( 'h1', 'h2', $output );
	
}