diff --git a/packages/docs/docs/config/README.md b/packages/docs/docs/config/README.md
index d448827930..61a2028e33 100644
--- a/packages/docs/docs/config/README.md
+++ b/packages/docs/docs/config/README.md
@@ -206,9 +206,9 @@ Whether to show line numbers to the left of each code blocks.
 ### markdown.slugify
 
 - Type: `Function`
-- Default: [source](https://github.com/vuejs/vuepress/blob/master/lib/markdown/slugify.js)
+- Default: [source](https://github.com/vuejs/vuepress/tree/master/packages/@vuepress/shared-utils/lib/slugify.js)
 
-Function for transforming header texts into slugs. This affects the ids/links generated for header anchors, table of contents and sidebar links.
+Function for transforming header texts into slugs. Changing this affects the ids/links generated for header anchors, table of contents and sidebar links.
 
 ### markdown.externalLinks
 
diff --git a/packages/docs/docs/zh/config/README.md b/packages/docs/docs/zh/config/README.md
index b10c1068f1..5c1082c683 100644
--- a/packages/docs/docs/zh/config/README.md
+++ b/packages/docs/docs/zh/config/README.md
@@ -197,6 +197,13 @@ VuePress provides a convenient way to add extra styles. you can create an `.vuep
 
 - [行号](../guide/markdown.md#行号)
 
+### markdown.slugify
+
+- Type: `Function`
+- Default: [source](https://github.com/vuejs/vuepress/tree/master/packages/@vuepress/shared-utils/lib/slugify.js)
+
+一个将标题文本转换为 slug 的函数。修改它会影响标题锚点、TOC、以及侧边栏链接生成的 id 和 链接。
+
 ### markdown.anchor
 
 - 类型: `Object`