Create a redirect to a website from my app

[DeveloperMax]

I am currently testing my app that I built using node and react (source on the bottom) on a development store and I want to create a button that redirects me to a specific website. I am not good with shopify.dev website so I'm having trouble figuring out how to do that.

Sources: 

https://www.youtube.com/watch?v=PIXN032XJJ8

https://shopify.dev/apps