add semicolon

Author: suphiem

examples/chat/app.js

@@ -18,7 +18,7 @@ var app = express.createServer();
  */
 
 app.configure(function () {
-  app.use(stylus.middleware({ src: __dirname + '/public', compile: compile }))
+  app.use(stylus.middleware({ src: __dirname + '/public', compile: compile }));
   app.use(express.static(__dirname + '/public'));
   app.set('views', __dirname);
   app.set('view engine', 'jade');