Update index.js

fix port

tests/webSocketServer/index.js

@@ -7,7 +7,7 @@ var server = http.createServer(function(request, response) {
     response.writeHead(404);
     response.end();
 });
-server.listen(81, function() {
+server.listen(8011, function() {
     console.log((new Date()) + ' Server is listening on port 8011');
 });
  
@@ -54,4 +54,4 @@ wsServer.on('request', function(request) {
     });
 	
 	connection.sendUTF("Hallo Client!");
-});
+});