Integrate Timely booking system into my Squarespace site

Site URL: http://www.bodyaesthetics.online

I would like to use Timely for my appointment booking system. I have read/watched tutorials and just cannot figure it out. I've got as far as adding the snippet below to the head page

<script id="timelyScript" src="//book.gettimely.com/widget/book-button-v1.5.js"></script>

Then it says to add the following snippet 'anywhere I want a button to appear'

<script>new timelyButton("bodyaesthetics", {"style":"dark"});</script>

But I actually do not know where to paste the second snippet.

And then once I do is that it? Will it just work or do I need to do more?

TIA

site P/W - Pleasehelp

47 minutes ago, ReneeB said:

Site URL: http://www.bodyaesthetics.online

I would like to use Timely for my appointment booking system. I have read/watched tutorials and just cannot figure it out. I've got as far as adding the snippet below to the head page

<script id="timelyScript" src="//book.gettimely.com/widget/book-button-v1.5.js"></script>

Then it says to add the following snippet 'anywhere I want a button to appear'

<script>new timelyButton("bodyaesthetics", {"style":"dark"});</script>

But I actually do not know where to paste the second snippet.

And then once I do is that it? Will it just work or do I need to do more?

TIA

site P/W - Pleasehelp

Second snippet should be placed on a code block