Update README.md

Author: brentd

README.md

@@ -20,7 +20,7 @@ So far, Xray can reveal:
 
 ## Installation
 
-To use Xray, you'll need at least **jQuery** on your pages. Backbone is optional. Also, `config.assets.debug = false` (the default) must be in development.rb.
+To use Xray, you'll need at least **jQuery** on your pages. Backbone is optional. Also, `config.assets.debug = true` (the default) must be in development.rb.
 
 Add to your Gemfile, preferably under your development group: