Clarify that multiple lines in the console are separate commands

Author: kejadlen

sites/installfest/create_and_deploy_a_rails_app.step

@@ -71,13 +71,15 @@ step "Generate a database model" do
   tip "If your prompt doesn't already show that you are (still) in the test_app folder" do
     console "cd test_app"
   end
-  
+
   console <<-BASH
 rails generate scaffold user name:string email:string address:text active:boolean
 rake db:migrate
 rails server
   BASH
 
+  message "**Note:** the above are three separate commands. Type each line into the terminal separately, not as one single command."
+  
   message "Wait until your console shows that the Webrick server has started (just like before).  Then, in the browser, visit <http://localhost:3000/users>"
 
   message "Click *New user* to create a user to make sure we can save to the database.  Click *Back* to see your results. (The window where you ran `rails server` will display debugging information as you do so.)"