add deprecation on option page

Author: hizzgdev

docs/en/2.options.md

@@ -12,6 +12,9 @@
 2.1. Introduction
 ===
 
+The page has been deprecated, and will not be updated any more, please refer to new [Options](options/index.md) page.
+---
+
 The options object for jsMind was briefly mentioned in the example in the previous chapter:
 
 ```javascript

docs/zh/2.options.md

@@ -11,6 +11,9 @@
 2.1. 综述
 ===
 
+此页面已过时，并将不会再更新，请访问新版的[选项](options/index.md)页面获取帮助。
+---
+
 上一章的示例中简单提到了 jsMind 的 options 对象：
 
 ```javascript