The first code block is teaching about a double render error caused by two render calls in the action, where the second is of the form
render :action => "regular_show"
but the narrative says: "...it will start to render the show view..."
I think that should be: "...it will start to render the regular_show view..."
If that's correct, I'd be happy to learn how to make changes to the
document, but I'm far more of a casual Rails developer, so confidence
is low 