docs($cn): sync plugin

packages/docs/docs/plugin/README.md

@@ -2,9 +2,9 @@
 
 Plugins usually add global-level functionality to VuePress. There is no strictly defined scope for a plugin - there are typically several types of plugins:
 
-1. Extend the data generated at compile time. e.g. [@vuepress/plugin-last-updated](./official/plugin-last-updated.md).
-2. Generate extra files before or after compilation. e.g. [@vuepress/plugin-pwa](./official/plugin-pwa.md).
-3. Add extra pages. e.g. [@vuepress/plugin-i18n-ui](./official/plugin-i18n-ui.md).
+1. Extend the data generated at compile time. e.g. [@vuepress/plugin-last-updated](./official/plugin-last-updated.md);
+2. Generate extra files before or after compilation. e.g. [@vuepress/plugin-pwa](./official/plugin-pwa.md);
+3. Add extra pages. e.g. [@vuepress/plugin-i18n-ui](./official/plugin-i18n-ui.md);
 4. Inject global UI. e.g. [@vuepress/plugin-back-to-top](./official/plugin-back-to-top.md).
 
 ![Architecture of VuePress](/architecture.png)

packages/docs/docs/plugin/official/plugin-back-to-top.md

 ---
 title: back-to-top
-metaTitle: Back-To-Top | VuePress
+metaTitle: Back-To-Top Plugin | VuePress
 ---
 
 # [@vuepress/plugin-back-to-top](https://github.com/vuejs/vuepress/tree/master/packages/%40vuepress/plugin-back-to-top)

packages/docs/docs/zh/plugin/README.md

@@ -2,9 +2,9 @@
 
 插件通常会为 VuePress 添加全局功能。插件的范围没有限制——一般有下面几种：
 
-1. 拓展在编译期生成的数据，如：[@vuepress/plugin-last-updated](https://github.com/vuejs/vuepress/tree/master/packages/@vuepress/plugin-last-updated).
-2. 在编译前后生成额外的文件，如：[@vuepress/plugin-pwa](https://github.com/vuejs/vuepress/tree/master/packages/%40vuepress/plugin-pwa)
-3. 增加额外的页面，如：[@vuepress/plugin-i18n-ui](https://github.com/vuejs/vuepress/tree/master/packages/@vuepress/plugin-i18n-ui)
-4. 注入全局的 UI, 如：[@vuepress/plugin-back-to-top](https://github.com/vuejs/vuepress/tree/master/packages/%40vuepress/plugin-back-to-top).
+1. 拓展在编译期生成的数据，如：[@vuepress/plugin-last-updated](./official/plugin-last-updated.md)；
+2. 在编译前后生成额外的文件，如：[@vuepress/plugin-pwa](./official/plugin-pwa.md)；
+3. 增加额外的页面，如：[@vuepress/plugin-i18n-ui](./official/plugin-i18n-ui.md)；
+4. 注入全局的 UI, 如：[@vuepress/plugin-back-to-top](./official/plugin-back-to-top.md)。
 
 ![Architecture of VuePress](/architecture.png)

packages/docs/docs/zh/plugin/official/plugin-active-header-links.md

 ---
 title: active-header-links
+metaTitle: Active-Header-Links 插件 | VuePress
 ---
 
-# @vuepress/plugin-active-header-links
+# [@vuepress/plugin-active-header-links](https://github.com/vuejs/vuepress/tree/master/packages/@vuepress/plugin-active-header-linksd)
 
 > 页面滚动时自动更新标题链接的插件
 ## Install

packages/docs/docs/zh/plugin/official/plugin-back-to-top.md

 ---
 title: back-to-top
+metaTitle: Back-To-Top 插件 | VuePress
 ---
 
-# @vuepress/plugin-back-to-top
+# [@vuepress/plugin-back-to-top](https://github.com/vuejs/vuepress/tree/master/packages/@vuepress/plugin-back-to-top)
 
 > back-to-top 插件.
 

packages/docs/docs/zh/plugin/official/plugin-blog.md

 ---
 title: blog
+metaTitle: Blog 插件 | VuePress
 ---
 
-# @vuepress/plugin-blog
+# [@vuepress/plugin-blog](https://github.com/vuejs/vuepress/tree/master/packages/@vuepress/plugin-blog)
 
 > 博客插件
 

packages/docs/docs/zh/plugin/official/plugin-google-analytics.md

 ---
 title: google-analytics
+metaTitle: Google Analytics 插件 | VuePress
 ---
 
-# @vuepress/plugin-google-analytics
+# [@vuepress/plugin-google-analytics](https://github.com/vuejs/vuepress/tree/master/packages/@vuepress/plugin-google-analytics)
 
 > Google analytics 插件
 

packages/docs/docs/zh/plugin/official/plugin-i18n-ui.md

 ---
 title: i18n-ui
+metaTitle: I18n-UI 插件 | VuePress
 ---
 
-# @vuepress/plugin-i18n-ui
+# [@vuepress/plugin-i18n-ui](https://github.com/vuejs/vuepress/tree/master/packages/@vuepress/plugin-i18n-ui)
 
 > i18n-ui 插件。
 

packages/docs/docs/zh/plugin/official/plugin-last-updated.md

 ---
 title: last-updated
+metaTitle: Last-Updated 插件 | VuePress
 ---
 
-# @vuepress/plugin-last-updated
+# [@vuepress/plugin-last-updated](https://github.com/vuejs/vuepress/tree/master/packages/@vuepress/plugin-last-updated)
 
 > last-updated 插件。
 

packages/docs/docs/zh/plugin/official/plugin-medium-zoom.md

 ---
 title: medium-zoom
+metaTitle: Medium-Zoom 插件 | VuePress
 ---
 
-# @vuepress/plugin-medium-zoom
+# [@vuepress/plugin-medium-zoom](https://github.com/vuejs/vuepress/tree/master/packages/@vuepress/plugin-medium-zoom)
 
 > [medium-zoom](https://github.com/francoischalifour/medium-zoom) 插件
 

packages/docs/docs/zh/plugin/official/plugin-pagination.md

 ---
 title: pagination
+metaTitle: Pagination 插件 | VuePress
 ---
 
-# @vuepress/plugin-pagination
+# [@vuepress/plugin-pagination](https://github.com/vuejs/vuepress/tree/master/packages/@vuepress/plugin-pagination)
 
 > 分页器插件
 

packages/docs/docs/zh/plugin/official/plugin-pwa.md

 ---
 title: pwa
+metaTitle: PWA 插件 | VuePress
 ---
 
-# @vuepress/plugin-pwa
+# [@vuepress/plugin-pwa](https://github.com/vuejs/vuepress/tree/master/packages/@vuepress/plugin-pwa)
 
 > PWA 插件
 

packages/docs/docs/zh/plugin/official/plugin-search.md

 ---
 title: search
+metaTitle: Search 插件 | VuePress
 ---
 
-# @vuepress/plugin-search
+# [@vuepress/plugin-search](https://github.com/vuejs/vuepress/tree/master/packages/@vuepress/plugin-search)
 
 > 基于 [Headers](../../miscellaneous/glossary.md#headers) 的搜索插件