Adding SKU code to show SKU under product on collection pages

Hello. I would like to display the SKU for each product above the product title in the collection pages (attached picture example below). I have tried code I found for other themes, but I am unable to get the SKU to show. I get the text “Item#” but still can’t figure out the SKU code. Does anyone know what this would be for this theme?

URL: https://woodburnpress.myshopify.com/collections/middle-school

PW: woodburn96

  1. In the code editor, navigate to the “Sections” directory and open the collection-template.liquid file.

  2. Find the code that outputs the product title, which might look like this:

## {{ product.title }}

Just above that line, add the code to display the SKU:

{{ product.sku }}

Thanks for responding. Unfortunately, I do not have that file in my Sections directory. Do you know where else I may look to add that code?