OADP-3149 Clarify example block titles

Author: vashirova

modules/oadp-verifying-upgrade-1-3-0.adoc

@@ -74,13 +74,13 @@ dpa-sample-1   Available   1s               3d16h   true
 
 In OADP 1.3 you can start data movement off cluster per backup versus creating a `DataProtectionApplication` (DPA) configuration.
 
-.Example
+.Example command
 [source,terminal]
 ----
 $ velero backup create example-backup --include-namespaces mysql-persistent --snapshot-move-data=true
 ----
 
-.Example
+.Example configuration file
 [source,yaml]
 ----
 apiVersion: velero.io/v1