@rubys

Section: Our First Action. Second paragraph:

By default, Rails looks for templates in a file with the same name as the action
it’s handling. In our case, that means we need to replace a file called
hello.html.erb in the app/views/say directory. (Why .html.erb? We’ll explain in a
minute.)

We aren’t actually replacing the file; we’re replacing some of the content. I believe “edit” better describes what’s being done.

So, in this paragraph I suggest replacing the word “replace” with the word “edit.”