doc(socketio/connect): specify middleware behavior for Data extractor

Author: Totodore

socketioxide/src/handler/extract.rs

@@ -5,11 +5,11 @@
 //! They can be used to extract data from the context of the handler and get specific params. Here are some examples of extractors:
 //! * [`Data`]: extracts and deserialize to json any data, if a deserialization error occurs the handler won't be called:
 //!     - for [`ConnectHandler`](super::ConnectHandler): extracts and deserialize to json the auth data
-//! 	- for [`ConnectMiddleware`](super::ConnectMiddleware): extract and deserialize to json the auth data. 
-//! In case of error, the middleware chain stops and a `connect_error` event is sent. 
+//!     - for [`ConnectMiddleware`](super::ConnectMiddleware): extract and deserialize to json the auth data.
+//! In case of error, the middleware chain stops and a `connect_error` event is sent.
 //!     - for [`MessageHandler`](super::MessageHandler): extracts and deserialize to json the message data
 //! * [`TryData`]: extracts and deserialize to json any data but with a `Result` type in case of error:
-//!     - for [`ConnectHandler`](super::ConnectHandler) and [`ConnectMiddleware`](super::ConnectMiddleware): 
+//!     - for [`ConnectHandler`](super::ConnectHandler) and [`ConnectMiddleware`](super::ConnectMiddleware):
 //! extracts and deserialize to json the auth data
 //!     - for [`MessageHandler`](super::MessageHandler): extracts and deserialize to json the message data
 //! * [`SocketRef`]: extracts a reference to the [`Socket`]