I’m a fan of Dash for developer docs. It’s such a simple but smart idea to have all developer docs in one place. There isn’t yet a set of Dash Doc’s for Lightning… until now!
You’ll get the built-in Components, Interfaces, Events and Guide’s from the official Lightning docs.
If you have Dash installed then go to the Preferences, Downloads and choose User Contributed on the left side. Then simply search for Lightning and you’ll see the new Dash Docset there:
Enjoy and feel free to leave any feedback, bug reports, suggestions over on Github – https://github.com/mattgoldspink/docset-sfdc/issues