Usage | How to add a HTML script to NC login page?

Hi, 

I am trying to add a consent banner using a <script> tag on site’s <head>

`<script
  type="text/javascript"
  src="https://app.termly.io/embed.min.js"
  data-auto-block="on"
  data-website-uuid="<id>">
</script>`

Can you please suggest how can I link this to the login page using jsloader?

Thank you
