fix link to frontmatter indexing properties

Author: davidkonigsberg

fern/products/docs/pages/customization/search.mdx

@@ -23,7 +23,7 @@ If you are using the AI Search feature, the search box also functions as your si
 </Frame>
 
 <Note>
-    **Note:** If an article includes the `nofollow` or `noindex` [frontmatter](/learn/docs/content/frontmatter#indexing-properties), it will not be indexed by Algolia DocSearch and won't appear in search results.
+    **Note:** If an article includes the `nofollow` or `noindex` [frontmatter](/learn/docs/configuration/page-level-settings#indexing-properties), it will not be indexed by Algolia DocSearch and won't appear in search results.
 </Note>
 
 ## Integrating with Algolia