How to add custompress shortcodes to woocommerce template.

Hi,

I have created a custom taxonomy that I want to add to woocommerce products on the site http://readind.simplecsr.com

I understand I need to add the shortcode to the appropriate template but I am not sure which template is being used for woocommerce or the best way to protect the changes from future updates if it is within the woocommerce plugin.

(I will be adding some additional taxonomies as well so want to make sure i get this right now.)

I want to display the new taxonomy below the existing category. http://reading.simplecsr.com/product/railway-children/

Thanks
Chris