Completed the assignment for public profiles

Hey Eliot,
I completed the assignment, and the `app/spec/features/profiles_spec.rb` test is passing.  That said, I'm not sure if what I did is correct.  

In particular, from the `app/spec/features/profiles_spec.rb` file, please take a look at lines 31 - 34.  I did not make any changes to lines 36 - 42, as the assignment described, but are those correct, too?

Thanks.