I can see why moving the YARD comments are necessary (since we no longer have `def subject`), but I'm a bit concerned about how this changes the docs.  Currently the docs show up [here](http://rubydoc.info/gems/rspec-core/RSpec/Core/Subject/ExampleMethods:subject).  With this change I assume they'll show up in the overview section of the module?  Is there a way with yard to force-add docs for `subject` even though we don't have `def subject`?