Update content/vault/v1.19.x/content/partials/rotation-manager-logging.mdx

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

Author: kpcraig

content/vault/v1.19.x/content/partials/rotation-manager-logging.mdx

@@ -1,4 +1,5 @@
-### Rotation Logging
+### Rotation logging
+
 The rotation manager emits logs (to the standard `vault.log`) on any successful or failed
 rotation. In the case of success, the log will note which credential was rotated, under
 the `rotationID` key, and the anticipated time of the next rotation, under the key `expire_time`.