Add Readme and update license

Signed-off-by: Alexey Galakhov <agalakhov@snapview.de>

LICENSE

@@ -1,4 +1,4 @@
-Copyright (c) 2016 Alexey Galakhov
+Copyright (c) 2017 Alexey Galakhov
 Copyright (c) 2016 Jason Housley
 
 Permission is hereby granted, free of charge, to any person obtaining a copy

README.md

@@ -0,0 +1,56 @@
+# Tungstenite
+
+Lightweight stream-based WebSocket implementation for [Rust](http://www.rust-lang.org).
+
+```rust
+
+/// A WebSocket echo server
+let server = TcpListener::bind("127.0.0.1:9001").unwrap();
+for stream in server.incoming() {
+    spawn (move || {
+        let mut websocket = accept(stream.unwrap());
+        loop {
+            let msg = websocket.read_message().unwrap();
+            websocket.write_message(msg).unwrap();
+        }
+    })
+}
+```
+
+Introduction
+------------
+[![MIT licensed](https://img.shields.io/badge/license-MIT-blue.svg)](./LICENSE)
+
+This library provides an implementation of WebSockets,
+[RFC6455](https://tools.ietf.org/html/rfc6455). It allows for both synchronous (like TcpStream)
+and asynchronous usage and is easy to integrate into any third-party event loops including
+[MIO](https://github.com/carllerche/mio). The API design abstracts away all the internals of the
+WebSocket protocol but still makes them accessible for those who wants full control over the
+network.
+
+This library is a work in progress. Feel free to ask questions and send us pull requests.
+
+Why Tungstenite?
+----------------
+
+It's formerly WS2, the 2nd implementation of WS. WS2 is the chemical formula of
+tungsten disulfide, the tungstenite mineral.
+
+Features
+--------
+
+Tungstenite provides a complete implementation of the WebSocket specification.
+TLS is supported on all platforms using native-tls.
+
+There is no support for permessage-deflate at the moment. It's planned.
+
+Testing
+-------
+
+Tungstenite is thoroughly tested and passes the [Autobahn Test Suite](http://autobahn.ws/testsuite/) for
+WebSockets. It is also covered by internal unit tests as good as possible.
+
+Contributing
+------------
+
+Please report bugs and make feature requests [here](https://github.com/snapview/tungstenite-rs/issues).