Update README

README

-Pure Python OPC-UA Client and Server, http://freeopcua.github.io/, https://github.com/FreeOpcUa/python-opcua
+Pure Python OPC-UA Client and Server  
+http://freeopcua.github.io/, https://github.com/FreeOpcUa/python-opcua
 
-API is similar to the python bindings of freeopcua c++ client and servers. However there are differences due to a different implementation and to make it more pythonic.
+API is similar to the python bindings of freeopcua c++ client and servers. It offers both a low level interface to send and receive all UA defined structures and high level classes allowing to write a server or a client in a few lines.
 
-Most code is autogenerated from xml specification using same code as the one that is going to be used for freeopcua C++ client and server. Adding more functionnality shoud be trivial.
+Most code is autogenerated from xml specification using same code as the one that is used for freeopcua C++ client and server, thus adding missing functionnality to client and server shoud be trivial.
 
-with Python3 the server and client do not require any third party libraries. If using python2.7 or pypy you need to install enum34, trollius(asyncio), and futures(concurrent.futures), with pip for example. Server and client can be run with pypy.
+Using Python3.4 the server and client do not require any third party libraries. If using python2.7 or pypy you need to install enum34, trollius(asyncio), and futures(concurrent.futures), with pip for example. Server and client can be run with pypy.
+
+coveryage.py reports a test coverage of over 90% of code, most of the rest is autogenerate code that is not used yet.
 
 
 Client: what works:
@@ -14,9 +17,11 @@ Client: what works:
 * creating subscriptions
 * subscribing to items for data change
 * adding nodes
-* tested servers: freeopcua C++, freeopcua Python, prosys
 * method call
 
+Tested servers: freeopcua C++, freeopcua Python, prosys
+
+
 Client: what is not implemented yet 
 * removing nodes 
 * subscribing to events
@@ -24,23 +29,22 @@ Client: what is not implemented yet
 * certificate handling
 * user and password 
 
-in addition testing against more servers should be done
-
-
 Server: what works:
 * creating channel and sessions
 * read/set attributes and browse
 * gettings nodes by path and nodeids
 * autogenerate addres space from spec
 * adding nodes to address space
-* tested client: freeopcua C++, freeopcua Python, uaexpert, prosys
 * datachange subscriptions
 * methods
 
+Tested clients: freeopcua C++, freeopcua Python, uaexpert, prosys, quickopc
+
 Server: what is not implemented
 * events
 * security (users, certificates, etc)
 * removing nodes 
+* adding missing modify methods
 
 Example client code:
 
@@ -80,17 +84,23 @@ Example server code:
     from opcua import ua, Server
 
     server = Server()
+    
     server.set_endpoint("opc.tcp://localhost:4841/freeopcua/server/")
     server.set_server_name("FreeOpcUa Example Server")
-    server.start()
+    uri = "http://examples.freeopcua.github.io"
+    idx = server.register_namespace(uri)
     objects = server.get_objects_node()
-    myfolder = objects.add_folder(2, "myfolder")
-    myvar = myfolder.add_variable(2, "myvar", 6.7)
+    myfolder = objects.add_folder(idx, "myfolder")
+    myvar = myfolder.add_variable(idx, "myvar", 6.7)
+    
+    server.start()
     ...
 ```
 
 # Development
 
+Code follows PEP8 apart for line lengths and autogenerate class and enums that keep camel case from XML definition.
+
 ## Running tests:
 
 python tests.py