Update README and add badge

Author: Pithikos

README.md

@@ -1,9 +1,11 @@
 Websocket Server
 =======================
 
+[![CircleCI](https://circleci.com/gh/Pithikos/python-websocket-server/tree/master.svg?style=svg)](https://circleci.com/gh/Pithikos/python-websocket-server/tree/master)
+
 A minimal Websockets Server in Python with no external dependencies.
 
-  * Works with Python2 and Python3
+  * Python2 and Python3 support
   * Clean simple API
   * Multiple clients
   * No dependencies
@@ -13,15 +15,6 @@ like SSL etc. The project is focused mainly on making it easy to run a
 websocket server for prototyping, testing or for making a GUI for your application.
 
 
-Usage
-=======================
-You can get a feel of how to use the websocket server by running
-
-    python server.py
-
-Then just open `client.html` in your browser and you should be able to send and receive messages.
-
-
 Installation
 =======================
 
@@ -34,6 +27,15 @@ You can use the project in three ways.
 For coding details have a look at the [*server.py*](https://github.com/Pithikos/python-websocket-server/blob/master/server.py) example and the [API](https://github.com/Pithikos/python-websocket-server#api).
 
 
+Usage
+=======================
+You can get a feel of how to use the websocket server by running
+
+    python server.py
+
+Then just open `client.html` in your browser and you should be able to send and receive messages.
+
+
 Testing
 =======