README.md in hara-0.1.0 vs README.md in hara-0.2.0

@@ -1,12 +1,18 @@
 # Hara
 
 [![Gem Version](https://badge.fury.io/rb/hara.png)](http://badge.fury.io/rb/hara)
 [![Build Status](https://travis-ci.org/jjyr/hara.png?branch=master)](https://travis-ci.org/jjyr/hara)
 
-Hara is a simple framework, help you build websocket server.
+Hara is a simple framework, help you build async & concurrent websocket server.
 
+Hara's async ability from [em-websocket](https://github.com/igrigorik/em-websocket),
+
+Hara's concurrent ability from [celluloid](https://github.com/celluloid/celluloid).
+
+Yes, hara just a combination of them, eventmachine and celluloid work well together :)
+
 ## Notice!!
 
 Current API is unstable, you should lock the version.
 
 ## Installation
@@ -30,19 +36,21 @@
 #test.rb
 require 'hara'
 
 class Echo < Hara::App
   define_action :echo do |str|
-    socket << str
+    socket.send str
   end
 end
 ```
 
 *client*
 ```javascript
 var msg = JSON.stringify({action: 'echo',args:['hello world']})
 var ws = new WebSocket('ws://localhost:3210')
-ws.onmessage = function(msg){console.log(msg.data)}
+ws.onmessage = function(msg){alert(msg.data)}
+
+//after a while
 ws.send(msg)
 //hello world
 ```
 
 *start server*