Merge branch 'gh-pages' of github.com:ruanyf/es6tutorial into gh-pages

docs/decorator.md

@@ -441,7 +441,7 @@ export default function publish(topic, channel) {
 ```javascript
 import publish from "path/to/decorators/publish";
 
-class FooComponent () {
+class FooComponent {
   @publish("foo.some.message", "component")
   someMethod() {
     return {