[Plugin: RSS Shortcode] Proposed change when images in excerpt

I am using excerpts where I have added images.
in order to get your plugin working properly I have made following changes, where I have put the output into a table:

function yoast_rss_shortcode( $atts ) {
	extract(shortcode_atts(array(
	    "feed" 		=> '',
		"num" 		=> '5',
		"excerpt" 	=> true
	), $atts));
	require_once(ABSPATH.WPINC.'/rss.php');
	if ( $feed != "" && $rss = fetch_rss( $feed ) ) {
		$content = '<table width="100%" border="0">';
		if ( $num !== -1 ) {
			$rss->items = array_slice( $rss->items, 0, $num );
		}
		foreach ( (array) $rss->items as $item ) {
			$content .= '<tr><td><p><a href="'.esc_url( $item['link'] ).'">'. $item['title'] .'</a></p>';
			if ( $excerpt != false && $excerpt != "false")
 			{
				$content .= '<p><span class="rss_excerpt">'. $item['summary'] .'</span></p></td></tr>';
			}
		}
	}
	$content .= '</table>';
	return $content;
}