The new documentation for XenForo 2 includes an explanation for building an add-on. I'm walking through the process right now and plan to update this post as new items are learned.
Adding the add-on through the terminal was painless. It was simply a matter of answering questions and the structure of the add-on created.
Next, I added the following two lines to the addon.json file.
Code:
"dev": "Tux Reports Network",
"icon": "fa-users"