diff --git a/README.md b/README.md
index 2d2b465..e3e53e7 100755
--- a/README.md
+++ b/README.md
@@ -125,6 +125,11 @@ Close the client, return until it is really closed.
 
 Check if client is connected.
 
+### Namespace
+`void connect(const std::string& uri)`
+
+Add namespace part `/[any namespaces]` after port, will automatically connect to the namespace you specified.
+
 ### Session ID
 `std::string const& get_sessionid() const`
 
@@ -145,6 +150,8 @@ Get socket.io session id.
 
 `message::ptr` pointer to `message` object, it will be one of its derived classes, judge by `message.get_flag()`.
 
+All designated constructor of `message` objects is hidden, you need to create message and get the `message::ptr` by `[derived]_message:create()`.
+
 ##Example
 
 Simple Console client Login to socket.io [chat room demo](https://github.com/Automattic/socket.io/tree/master/examples/chat).
@@ -247,4 +254,4 @@ Use this [shell](https://github.com/socketio/socket.io-client-cpp/blob/master/ex
 Finally, Add boost source folder to `header search path`, and add static libs to link option.
 
 ##License
-BSD
\ No newline at end of file
+BSD