Change Read MoreButton

Hello!

I’m trying to change the text on the ‘Read More’ Button to say ‘Out of Stock’ instead. I have a plugin that does it for me currently but would love it if I could change the button so it matches the Botiga theme which I love! My customers really need to see which products are in/out of stock on the page without clicking onto their individual page as this is quite annoying.

Any help would be much appreciated thanks! 🙂

The page I need help with: [log in to see the link]