Improve Deep Data Security lab scenarios

terraform/envs/demo/terraform.tfvars.example

@@ -8,6 +8,10 @@ region           = "sa-saopaulo-1"
 owner       = "database-security-team"
 name_prefix = "dds-lab"
 
+# The Autonomous Database DB name must be unique in the tenancy/region.
+# Change this if another ADB named DDSLAB already exists.
+adb_db_name = "DDSLAB"
+
 adb_admin_password = "REPLACE_WITH_STRONG_PASSWORD_DO_NOT_COMMIT"
 
 # Set only when the target version is available in your tenancy/region.
@@ -18,6 +22,6 @@ enable_compute_bastion      = false
 
 # Required only when enable_compute_bastion = true.
 # bastion_availability_domain = "xxxx:SA-SAOPAULO-1-AD-1"
+# The image OCID must be compatible with bastion_shape in the selected region.
 # bastion_image_ocid          = "ocid1.image.oc1.sa-saopaulo-1.example"
 # bastion_ssh_public_key      = "ssh-rsa AAAA..."
-