Changed to better describe the appropriate action that needs to be taken by the user. You don't place links "instead" of list items, but rather, "inside" of them.
sass: scss/components/_breadcrumbs.scss
---
-To make a set of breadcrumb links, just add the class `.breadcrumbs` to a `<ul>`, and then add links instead of `<li>` elements.
+To make a set of breadcrumb links, just add the class `.breadcrumbs` to a `<ul>`, and then add links inside of the `<li>` elements.
The current page doesn't require a link or a class, but you should add some explanatory text for AT that indicates which item is the current page.