ember install ember-cli-addon-docs forces plugin choice without context

[elwayman02]

If someone has come to addon-docs for the first time and is starting to install it, the first thing they'll do is run ember install ember-cli-addon-docs. The CLI prompt then asks "Which documentation style would you like to use?" and provides two options: YUIDoc & ESDoc. The user likely has no context as to why they would choose one over the other, and there is no option to opt-out of this choice and install the appropriate plugin separately in the future. Even more confusingly, the official Quickstart guides make no mention of this prompt and instead recommend installing the plugins separately.

There are a couple of conflated issues here:

1. There is no context for how to choose between the two options presented.
2. If you don't know how to choose, there is no option to defer that choice and install the plugins separately.
3. The Quickstart guides are written in a way that implies there IS a way to defer that choice and expects you to install them separately.

[RobbieTheWagner]

You can remove the specific npm packages and add the other ones to switch from YUIDoc to ESDoc.

[elwayman02]

Yes, you can, but that doesn't really address the concern here, which is that we're forcing the user to make a choice with no information, and that becomes friction for onboarding. The user doesn't know the full implications of such a choice or how easy it is to undo. We can't think from our perspective of already knowing everything about how this project works, we have to think like a user who is coming to this project for the first time.