Functions.php changes doing nothing

I am trying to rearrange my single product page in woocommerce in the staging area of my site so the the product description is at the top of the page.
Here is an example of the page.
I found on this page to do that I need to change the priority values of the hooks in my functions.php file of the child theme of Customizr I created.

I could not figure out which of those hooks was the one for product description so to get a feel for what I was doing I followed the example they gave and so my functions.php folder looks like this

<?php
/* Write your awesome functions below */
remove_action( 'woocommerce_single_product_summary', 'woocommerce_template_single_add_to_cart', 30 );
add_action( 'woocommerce_single_product_summary', 'woocommerce_template_single_add_to_cart', 60 );

but no changes were made to the site upon adding this code and I have no idea why this could be… Any help would be greatly appreciated and thank you in advanced.