Explain rails s runs forever and blocks input

Sometimes people will try to type commands into the terminal when they
have a server running and get confused as to why nothing is happening.

Author: mxhold

sites/en/intro-to-rails/running_your_application_locally.step

@@ -6,6 +6,8 @@ end
 steps do
   step do
     console "rails server"
+    message "This will print some stuff and stay running forever, printing more stuff
+every time you visit a page in your app."
   end
   step do
     text "Point your web browser to "
@@ -14,7 +16,10 @@ steps do
   end
 
   step do
-    message "When at the terminal with your running rails server, type **Control-C** to stop rails server. You can do this now."
+    message "While the server is running, whatever you type in that terminal tab
+will be ignored."
+    message "To get back to the terminal, you can stop the server by typing
+`Control-c`."
     result <<-STOPPING_RAILS_SERVER
 ^C[#{Time.now.strftime("%Y-%m-%d %H:%M:%S")}] INFO  going to shutdown ...
 [#{Time.now.strftime("%Y-%m-%d %H:%M:%S")}] INFO  WEBrick::HTTPServer#start done.