Shared VPC doc updates.

Author: eohartman

modules/rosa-sharing-vpc-dns-and-roles.adoc

@@ -72,7 +72,7 @@ $ rosa create operator-roles --oidc-config-id <oidc-config-ID> <1>
 The Installer account role and the shared VPC role must have a one-to-one relationship. If you want to create multiple shared VPC roles, you should create one set of account roles per shared VPC role.
 ====
 
-. After you create the Operator roles, share the full domain name, which is created with `<intended_cluster_name>.<reserved_dns_domain>`, your _Ingress Operator Cloud Credentials_ role's ARN, and your _Installer_ role's ARN with the *VPC Owner* to continue configuration.
+. After you create the Operator roles, share the full domain name, which is created with `<intended_cluster_domain_prefix>.<reserved_dns_domain>`, your _Ingress Operator Cloud Credentials_ role's ARN, and your _Installer_ role's ARN with the *VPC Owner* to continue configuration.
 +
 The shared information resembles these examples:
 +

modules/rosa-sharing-vpc-hosted-zones.adoc

@@ -39,7 +39,7 @@ image::372_OpenShift_on_AWS_persona_worflows_0923_3.png[]
   ]
 }
 ----
-. Create a private hosted zone in the link:https://us-east-1.console.aws.amazon.com/route53/v2/[Route 53 section of the AWS console]. In the hosted zone configuration, the domain name is `<cluster_name>.<reserved_dns_domain>`. The private hosted zone must be associated with the created VPC.
+. Create a private hosted zone in the link:https://us-east-1.console.aws.amazon.com/route53/v2/[Route 53 section of the AWS console]. In the hosted zone configuration, the domain name is `<cluster_domain_prefix>.<reserved_dns_domain>`. The private hosted zone must be associated with the created VPC.
 . After the hosted zone is created and associated with the VPC, provide the following to the *Cluster Creator* to continue configuration:
 * Hosted zone ID
 * AWS region