angular/angular.js — pull request #7099 by RobertKielty (2014-04-12 13:36:07+00:00)
Title: Update step_07.ngdoc

I attempted to tighten up the language around the DI overview so that it was clearer and more explicit. The sole responsibilities sentence was semantically jarring and I think looks better as a list. Some minor grammar improvements. I had no way of proofing final appearance so apologies if I have got any formatting wrong.