Fix some nits in object storage clients release notes

This is follow up patch to fix the nits in
release notes - I6b44fb9a692b947baadbe049b2f7d31e4ab51035

Change-Id: I9eb4a60a8b0ff69c0646b87af846cf8947cede21
diff --git a/releasenotes/notes/migrate-object-storage-as-stable-interface-42014c7b43ecb254.yaml b/releasenotes/notes/migrate-object-storage-as-stable-interface-42014c7b43ecb254.yaml
index 1e97b29..72b8e26 100644
--- a/releasenotes/notes/migrate-object-storage-as-stable-interface-42014c7b43ecb254.yaml
+++ b/releasenotes/notes/migrate-object-storage-as-stable-interface-42014c7b43ecb254.yaml
@@ -1,9 +1,10 @@
 ---
 features:
   - |
-    Define object storage service clients as libraries
-    Add new service clients to the library interface so the other projects can use these modules as stable libraries without
-    any maintenance changes.
+    Define below object storage service clients as libraries.
+    Add new service clients to the library interface so the
+    other projects can use these modules as stable libraries
+    without any maintenance changes.
 
       * bulk_middleware_client
       * capabilities_client