Fix indentation in releasenotes

This commit fixes indentations in releasenotes. Due to the indentations,
the html contents are rendered as block quotes which is awkward.

Change-Id: Ia9f271ead6a6e3fb90afc935771e8da4d8990c3c
diff --git a/releasenotes/notes/12/12.1.0-identity-clients-as-library-e663c6132fcac6c2.yaml b/releasenotes/notes/12/12.1.0-identity-clients-as-library-e663c6132fcac6c2.yaml
index f9173a0..b857db8 100644
--- a/releasenotes/notes/12/12.1.0-identity-clients-as-library-e663c6132fcac6c2.yaml
+++ b/releasenotes/notes/12/12.1.0-identity-clients-as-library-e663c6132fcac6c2.yaml
@@ -6,8 +6,8 @@
     so the other projects can use these modules as stable libraries without
     any maintenance changes.
 
-      * endpoints_client(v2)
-      * roles_client(v2)
-      * services_client(v2)
-      * tenants_client(v2)
-      * users_client(v2)
+    * endpoints_client(v2)
+    * roles_client(v2)
+    * services_client(v2)
+    * tenants_client(v2)
+    * users_client(v2)