Stuck on Debugging HTML Lesson (Mac)

I am stuck on this, its telling me to 1.First download our “debug-example demo”
I am suppose to download it locally then open it in a browser.
Not sure what I’m suppose to download locally and unsure on how to open it on a browser since I can’t find what to download.

Active learning: Studying permissive code

It’s time to study the permissive nature of HTML code.

  1. First, download our debug-example demo and save it locally. This demo is deliberately written with some built-in errors for us to explore (the HTML markup is said to be badly-formed, as opposed to well-formed).
  2. Next, open it in a browser. You will see something like this: