Update content/vault/v1.21.x (rc)/content/docs/updates/important-changes.mdx

Co-authored-by: Sarah Chavis <62406755+schavis@users.noreply.github.com>

Author: kpcraig

content/vault/v1.21.x (rc)/content/docs/updates/important-changes.mdx

@@ -52,7 +52,7 @@ more information.
 
 ## New behavior
 
-### Rotation manager schedule strings are in UTC
+### Rotation manager schedule strings in UTC ((#rotation-manager-utc))
 
 | Change       | Affected version | Vault edition
 | ------------ | ---------------- | -------------