Fix confusion in the quickstart guide

[alexlafroscia]

Closes #78

[gossi]

While you are at it. In point 4 of the quickstart "Create your docs skeleton". It says the file: tests/dummy/app/pods/docs/template.hbs from my understanding should be tests/dummy/app/templates/docs/template.hbs (pods vs templates) - can you confirm my assumption and fix this accordingly?

[alexlafroscia]

I think that template is correct... If you have a docs pod, then the file name they reference is right.

[pzuraq]

We have decided to switch all examples and recommendations to not use pods in the docs, because the recommended format by Ember is classic structure. I don't think you need to update that as well (though it would be appreciated) but it seems like a new eslint rule has been added that is causing tests to fail, we need to call this._super(...arguments) in an init function somewhere