How to add a url to an external web page, like a YouTube video

I would like to know how to insert a url link from some text or illustration in an app that allows a user to jump out to another web site like a video in YouTube.

If you are using SFM, you can use markdown format - [text](url) - to add a link to some text, e.g.

\p Here is the [Scripture App Builder]( website.