Updated instructions for API reloading.

CHANGELOG.markdown

@@ -6,7 +6,7 @@ Next Release
 * [#309](https://github.com/intridea/grape/pull/309): An XML format API will return an error instead of returning a string representation of the response if the latter cannot be converted to XML - [@dblock](http://github.com/dblock).
 * [#309](https://github.com/intridea/grape/pull/309): Added XML support to entities - [@johnnyiller](https://github.com/johnnyiller), [@dblock](http://github.com/dblock).
 * A formatter that raises an exception will cause the API to return a 500 error - [@dblock](http://github.com/dblock).
-* [#131](https://github.com/intridea/grape/issues/131) Fix README.markdown instructions regarding Rails 3.x reloading. Using instructions from Wiki works better - [@jyn](http://github.com/jyn)
+* [#131](https://github.com/intridea/grape/issues/131) Added instructions for Grape API reloading in Rails - [@jyn](http://github.com/jyn), [@dblock](http://github.com/dblock).
 * Your contribution here.
 
 0.2.6 (01/11/2013)

README.markdown

@@ -1002,28 +1002,30 @@ end
 
 ### Rails 3.x
 
-Source: http://stackoverflow.com/questions/3282655/ruby-on-rails-3-reload-lib-directory-for-each-request/4368838#4368838
+Add API paths to `config/application.rb`.
 
-Create file `config/initializers/reload_lib.rb`
+```ruby
+# Auto-load API and its subdirectories
+config.paths.add "app/api", :glob => "**/*.rb"
+config.autoload_paths += Dir["#{Rails.root}/app/api/*"]
+```
+
+Create `config/initializers/reload_api.rb`.
 
 ```ruby
 if Rails.env.development?
-  lib_reloader = ActiveSupport::FileUpdateChecker.new(Dir["app/api/**/*"]) do
+  api_files = Dir["#{Rails.root}/app/api/**/*.rb"]
+  api_reloader = ActiveSupport::FileUpdateChecker.new(api_files) do
     Rails.application.reload_routes!
   end
-
   ActionDispatch::Callbacks.to_prepare do
-    lib_reloader.execute_if_updated
+    api_reloader.execute_if_updated
   end
 end
 ```
 
-In `config/application.rb`, add
+See [StackOverflow #3282655](http://stackoverflow.com/questions/3282655/ruby-on-rails-3-reload-lib-directory-for-each-request/4368838#4368838) for more information.
 
-```ruby
-config.autoload_paths += %W(#{config.root}/app/api)
-config.autoload_paths += Dir["#{config.root}/app/api/**/"]
-```
 
 ## Performance Monitoring