docs: update docs, fixed docsifyjs#526

Author: QingWei-Li

docs/de-de/plugins.md

@@ -153,7 +153,7 @@ Disqus comments. https://disqus.com/
 </script>
 ```
 
-## Navigation
+## Pagination
 
 Pagination for docsify. By [@imyelo](https://github.com/imyelo)
 

docs/plugins.md

@@ -153,7 +153,7 @@ Disqus comments. https://disqus.com/
 </script>
 ```
 
-## Navigation
+## Pagination
 
 Pagination for docsify. By [@imyelo](https://github.com/imyelo)
 
@@ -163,6 +163,7 @@ Pagination for docsify. By [@imyelo](https://github.com/imyelo)
 ```
 
 ## codefund
+
 a [plugin](https://github.com/njleonzhang/docsify-plugin-codefund) to make it easy to join up [codefund](https://codesponsor.io/)
 
 > codefund is formerly known as "codesponsor"
@@ -176,4 +177,3 @@ window.$docsify = {
   ]
 }
 ```
-

docs/zh-cn/plugins.md

@@ -153,7 +153,7 @@ Disqus comments. https://disqus.com/
 </script>
 ```
 
-## Navigation
+## Pagination
 
 Pagination for docsify. By [@imyelo](https://github.com/imyelo)
 
@@ -162,8 +162,8 @@ Pagination for docsify. By [@imyelo](https://github.com/imyelo)
 <script src="//unpkg.com/docsify-pagination/dist/docsify-pagination.min.js"></script>
 ```
 
-
 ## Code Fund
+
 帮你快速接入[Code Fund](https://codesponsor.io/)的[插件](https://github.com/njleonzhang/docsify-plugin-codefund), 由[@njleonzhang](https://github.com/njleonzhang)提供。
 
 > Code Fund 以前叫 codesponsor