Add max level option

docs/404.html

@@ -14,5 +14,5 @@
   </nav>
   <div id="app"></div>
 </body>
-<script src="//unpkg.com/docsify" data-repo="qingwei-li/docsify"></script>
+<script src="//unpkg.com/docsify/lib/docsify.min.js" data-repo="qingwei-li/docsify" data-max-level="3"></script>
 </html>

docs/README.md

@@ -91,8 +91,26 @@ Code in `404.html`
 </nav>
 ```
 
-### GitHub Corner
-Modify your `404.html`
+### Options
+
+#### repo
+Display the [GitHub Corner](http://tholman.com/github-corners/) widget.
+
 ```html
 <script src="//unpkg.com/docsify" data-repo="your/repo"></script>
 ```
+
+#### max-level
+Toc level.
+
+```html
+<script src="//unpkg.com/docsify" data-max-level="6"></script>
+```
+
+#### el
+Root element.
+
+```html
+<script src="//unpkg.com/docsify" data-el="#app"></script>
+```
+

docs/zh-cn.md

@@ -90,11 +90,26 @@ docsify serve docs
 </nav>
 ```
 
-### GitHub Corner
+### 配置参数
+
+#### repo
 参考本文档的右上角的 GitHub 图标，如果要开启的话，将 `404.html` 里的 script 改成
 
 ```html
 <script src="//unpkg.com/docsify" data-repo="your/repo"></script>
 ```
 
+#### max-level
+目录最大展开层级，默认值为 6
+
+```html
+<script src="//unpkg.com/docsify" data-max-level="6"></script>
+```
+
+#### el
+替换节点元素，默认为 `#app`
+```html
+<script src="//unpkg.com/docsify" data-el="#app"></script>
+```
+