Bump template version + fix inconsistent alignment (use all spaces)

templates/single-product/add-to-cart/grouped.php

@@ -10,10 +10,10 @@
  * happen. When this occurs the version of the template file will be bumped and
  * the readme will list any important changes.
  *
- * @see 	    https://docs.woocommerce.com/document/template-structure/
- * @author 		WooThemes
- * @package 	WooCommerce/Templates
- * @version     3.0.6
+ * @see         https://docs.woocommerce.com/document/template-structure/
+ * @author      WooThemes
+ * @package     WooCommerce/Templates
+ * @version     3.0.7
  */
 if ( ! defined( 'ABSPATH' ) ) {
 	exit;