How to use okta CDN

I want to use okta CDN and copy certain links to HTML. trying to Add Sign in Widget to my project. Can someone help where should I go and update the HTML with below links.

Take a look at: https://developer.okta.com/code/javascript/okta_sign-in_widget#cdn

Here is an another example: https://github.com/okta/samples-java-spring/blob/master/front-end/src/main/resources/static/index.html