How to hook woocommerce to Pinegrow Theme


I followed this tutorial “WooCommerce to run in a WordPress theme created with Pinegrow”. I followed and success with woocommerce.php showing the products. But I want to modify that shopfront and realised that I cannot modify the archive-product.php. Woocommerce Documentation require me to use Hooks function which I am not familiar with. I found this tutorial which I tried to apply but nothing is working when I exported the theme to Wordpress.

Anyone hopefully shed light how to use woocommerce hook successfully ?

did you find out?