<head> section. As everyone know you can edit header.php but will loose your stuff with the next update. Would be great, if not available already, to have this feature.
add_action('wp_head', 'theme_add_link_rel_publisher');
function theme_add_link_rel_publisher() {
echo "\n" . '<link rel="publisher" />' . "\n";
}It looks like you're new here. If you want to get involved, click one of these buttons!