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

@@ -58,9 +58,9 @@ more information.
 | ------------ | ---------------- | -------------
 | New behavior | 1.21.x             | Enterprise
 
-Vault will interpret `rotation_schedule` strings relative to UTC. This matches the behavior of
-static role rotations in the database plugin. Old rotations will continue to use their existing
-schedule until manually updated with an API call.
+Vault interprets `rotation_schedule` strings relative to UTC to match the
+behavior of static role rotations in the database plugin. Old rotations use
+their existing schedule until you manually update rotation with an API call.
 
 ## Known issues