small fix

Author: devalog

fern/snippets/redirects.mdx

@@ -56,7 +56,7 @@ redirects:
 
 Instead, [enable automatic homepage redirects in your `docs.yml`](/docs/configuration/what-is-docs-yml#settings-configuration) to send broken links to your homepage rather than showing a 404 page:
 
-```yaml
+```yaml title="docs.yml"
 settings:
   hide-404-page: true
 ```