remove reference to keywords

Author: devalog

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

@@ -259,8 +259,6 @@ Currently, relative paths are _not_ supported for this field.
 
 <ParamField path="tags" type="array of strings" required={false}>
   For [changelog pages](/docs/customization/changelogs) only. Tags allow users to filter changelog entries by specific categories. Define tags as an array of strings in the frontmatter.
-  
-  For non-changelog pages, [use `keywords`](/docs/configuration/page-level-settings#document-properties).
 </ParamField>
 
 <Markdown src="/snippets/changelog-example.mdx" />