Merge pull request #82688 from laubai/osdocs-11789-hcp-split-prep-env

OSDOCS#11789: HCP docs split - Prepare your environment

Author: xenolinux

_topic_maps/_topic_map_rosa.yml

@@ -77,7 +77,7 @@ Topics:
 # - Name: About admission plugins
 #   File: rosa-admission-plug-ins
 #   Distros: openshift-rosa
-- Name: About IAM resources for ROSA with STS
+- Name: About IAM resources for STS clusters
   File: rosa-sts-about-iam-resources
 - Name: OpenID Connect Overview
   File: rosa-oidc-overview
@@ -240,7 +240,7 @@ Topics:
   File: rosa-limits-scalability
 - Name: ROSA with HCP limits and scalability
   File: rosa-hcp-limits-scalability
-- Name: Planning your environment
+- Name: Planning resource usage in your cluster
   File: rosa-planning-environment
 - Name: Required AWS service quotas
   File: rosa-sts-required-aws-service-quotas
@@ -897,8 +897,6 @@ Topics:
   File: configuring-registry-operator
 - Name: Accessing the registry
   File: accessing-the-registry
-# - Name: Exposing the registry
-#   File: securing-exposing-registry
 ---
 Name: Operators
 Dir: operators