Armory addon does not show up in Blender

Following instructions given here, I’m trying to add the Armory addon in Blender. However, when I open Blender and go to the addons sections I cannot find Armory there. Why is that?

I found the answer here

this happens because you are using blender2.7x and the armory version is made for blender 2.8.
I am also trying to find a version for blender2.7