Intergration with adding signup to mailchimp

I’ve currently got the registraigtion all filled in. Workds lovely and really easily to use.

I want to be able to put a tick box to sign them up to a mailchimp list I already have.

I looked at the other plugin but it doesn’t say anything about mailchimp. Is there a way I can get this to work?

They have this code I can add

If you are adding it inside a php code block, pop this in:

mailchimpSF_signup_form();
Or, if you are dropping it in between a bunch of HTML, use this:

<?php mailchimpSF_signup_form(); ?>

Thanks in advance