How to add a jump link to another part of the webpage?

You can accomplish this by creating anchor links. Here is more info on them:

https://www.w3docs.com/snippets/html/how-to-create-an-anchor-link-to-jump-to-a-specific-part-of-a-page.html

You would create an anchor link tag on the header of the article. For example, you have a California article at the bottom of the webpage. So, you'd have a part of your webpage with:

<a id="ca-anchor">California Header</a>

and in the map, you'd just give California a URL of #ca-anchor. Then, clicking on California in the map would scroll down to the California Header section.