updated README

README.md

@@ -1,15 +1,15 @@
 # JSON Builder
-Rails provides an excellent XML Builder by default to build RSS and ATOM feeds, but nothing to help you build JSON. The standard `to_json` works well, but can get very verbose when you need full control of what the user gets, this is where JSON Builder comes in.
+Rails provides an excellent XML Builder by default to build RSS and ATOM feeds, but nothing to help you build complex and custom JSON data structures. The standard `to_json` works well, but can get very verbose when you need full control of what the user gets, this is where JSON Builder comes in alongside the default XML Builder.
 
 ## Using JSON Builder With Rails
 Make sure to add `json_builder` to your `Gemfile`.
 
     gem 'json_builder'
 
-You then have the option to run your JSON through a prettifier before it's returned.
+If you'd like to run the generated JSON through a prettifier for debugging reasons, just edit it in your environment config
 
-    JSON::Application.configure do
-      config.action_view.pretty_print_true = false
+    Your::Application.configure do
+      config.action_view.pretty_print_json = true
     end
 
 ## Sample Usage
@@ -30,11 +30,11 @@ You then have the option to run your JSON through a prettifier before it's retur
       json.asp false
     end
 
-    puts json.compile
+    puts json.compile!
 
 ## Examples
 See the examples directory.
 http://github.com/dewski/json_builder/tree/master/examples
 
 ## Copyright
-Copyright © 2010 Garrett Bjerkhoel. See MIT-LICENSE for details.
+Copyright © 2010 Garrett Bjerkhoel. See [MIT-LICENSE](http://github.com/dewski/json_builder/blob/master/MIT-LICENSE) for details.

lib/json_builder/generator.rb

@@ -55,7 +55,7 @@ def compile!
       if @is_array
         compiled = ('[{' + @compiled.join(',') + '}]').gsub(',},{,', '},{')
       else
-        compiled = '{' + @compiled.join(',') + '}'
+        compiled = '{' + @compiled.join(', ') + '}'
       end
 
       if @pretty_print
@@ -69,7 +69,7 @@ def compile!
     private
       def type_cast(text)
         case text
-          when Array then '['+ text.map! { |j| type_cast(j) }.join(',') +']'
+          when Array then '['+ text.map! { |j| type_cast(j) }.join(', ') +']'
           when Hash then 'teheh'
           when String then "\"#{text}\""
           when TrueClass then 'true'