If you're looking for an answer I used Brine.
Paste into header code injection.
Let me know how you go.
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/scrollify/1.0.19/jquery.scrollify.min.js"></script>
<script>
$(function() {
$.scrollify({
section : ".Index-page",
});
});
</script>