If you want to show the description on the category inside the accordion of WooFood before products you can use the following snippet on your functions.php inside your child theme

add_action('woofood_after_products_wrapper_open', 'wpslash_show_category_description', 10, 2);

function  wpslash_show_category_description($cat, $ids)
{
    $term_object = get_term_by( 'slug', $cat, 'product_cat' );
    echo $term_object->description;

}