Customising product-attributes.php woocommerce

Hello, I am trying to customise the products-attrubute.php but it doesn’t look like changes I make in my child theme are showing up. I want to add some custom fields to the additional information tab. I’ve created the custom fields using advance custom fields and used

   <tr>
          <td> is this showing up?   <img src="<?php the_field('supplier_logo'); ?>" alt="supplier_name" /> </td><td></td>
  </tr>

to test pulling the information through.
but nothing