Intermedia Curric: Add scary red thing telling you to not spend forever on Devise or Bootstrap

Author: tjgrathwell

sites/intermediate-rails/install_devise.step

@@ -8,6 +8,11 @@ message <<-MARKDOWN
 MARKDOWN
 end
 
+important do
+  h2 "Timebox It!"
+  p "The purpose of this section is to allow users to log in to your app and demonstrate how to add external libraries like Devise using the Gemfile. If you find yourself needing to write more than a couple of lines of code to make that happen, you may have gone too far. Talk to a TA!"
+end
+
 discussion do
 message <<-MARKDOWN
 * What is devise?

sites/intermediate-rails/make_it_pretty_with_bootstrap.step

@@ -1,11 +1,16 @@
 requirements do
-message <<-MARKDOWN
+  message <<-MARKDOWN
 * The site should use Bootstrap for a superfun modern look. 
 * When logged in, the user's email address should appear in the upper-right corner of a navigation bar.
 MARKDOWN
   img class: 'noborder', src: 'img/header.png'
 end
 
+important do
+  h2 "Timebox It!"
+  p "The purpose of this section is to make your app a bit prettier and demonstrate how to add CSS frameworks like Bootstrap using the Gemfile. Don't get snagged on the details of getting your CSS exactly right, unless that's valuable to you."
+end
+
 discussion do
 message <<-MARKDOWN
 * Chrome developer tools / Firefox Firebug plugin — how to use ’em!