Parker here form the guru team :)
Before we change anything, let's be sure to duplicate our theme by going to Online Store > Actions > Duplicate
Because it's always good to have a backup!
In most of the Shopify themes, the liquid file that you'll be editing would be a Section.
For example, in the Pop theme, you would click Online Store > Actions > Edit Code, choose Sections then edit whichever section you have displaying on your homepage. If you're using the Featured Collection, it would look like the below.
If you need help with what to put in that section to get that more link, let me know! If you're using a Shopify theme, we can open up a design ticket for your store and our theme support team could take a look into adding this for you. :)
If you're looking into the design of your site, I thought I would pass along this new blog post!
Design Psychology: 12 Ways to Convert Users into Buyers
Applying psychology to design is a powerful tool. Companies are increasingly studying how customers think and behave, and are tailoring their services accordingly.
Hopefully this helps! Please don't hesitate to reach out if you need anything further.