How to insert script on a slider

Hi there,

I was hoping you could help me. I have used Master Slider on the homepage where there is a button to click on every slide. The link currently takes visitors to another site (hotdoc) but we would like it to open on the same website as a lightbox.

The code for the link is here:
Book Appointment<script async src=”https://cdn.hotdoc.com.au/static/assets/js/hotdoc-widgets.min.js&#8221; charset=”utf-8″></script>

Do you know how I can make this work?

Thank you so much in advance.

Regards,
Lydia

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