updated docs to fit stream interface

README.md

@@ -8,14 +8,29 @@ The first thing you need is to setup a spy inside your program
 
 ``` js
 var spies = require('spies');
+var net = require('net');
 
-spies(9999, function(spy) {
-	spy.on('echo', function(value) {
-		spy.log(value);
+net.createServer(function(socket) {
+	var spy = spies();
+
+	spy.on('echo', function() {
+		spy.log(Array.prototype.slice.call(arguments));
 	});
 	spy.on('load-avg', function() {
 		spy.log(require('os').loadavg());
 	});
+
+	socket.pipe(spy).pipe(socket);
+}).listen(9999);
+```
+
+As you can see `spy` is simply a readable and writable stream so you can pipe to any kind of stream (like a websocket)
+
+You can use the `spies.listen` helper if you just want to listen using a tcp server
+
+``` js
+spies.listen(9999, function(spy) {
+	// attach commands here
 });
 ```