update

zhangyonghong · zhangyonghong · commit b531aec2bebd · 2015-09-01T11:43:01.000+08:00
diff --git a/qq.md b/qq.md
@@ -943,6 +943,12 @@ https://github.com/jsfront/qa/tree/master/2015/07/03
 4. 生成二维码
 
 - [生成二维码](http://cli.im/)
+
+5. 兼容
+
+- [ES 兼容网站](http://kangax.github.io/compat-table/es6/)
+- [W3C CSS验证服务](http://jigsaw.w3.org/css-validator/validator.html.zh-cn)
+- [emulators](https://www.manymo.com/emulators)
     
 ###十七. 前端导航网站
 
