[enterprise-4.12] Issue in file scalability_and_performance/ztp_far_edge/ztp-preparing-the-hub-cluster.adoc

In the provided documentation here we are reffering a ConfigMap that contains the mirror registry for which in the ACM2.6,2.7 and 2.8 this is wrong:
- the presented configuration: 
apiVersion: v1
kind: ConfigMap
metadata:
  name: assisted-installer-mirror-config
  namespace: assisted-installer
  labels:
    app: assisted-service
data:
  ca-bundle.crt: <certificate> 
  registries.conf: |  
    unqualified-search-registries = ["registry.access.redhat.com", "docker.io"]    [[registry]]
      location = <mirror_registry_url>  
      insecure = false
      mirror-by-digest-only = true

- the working configuration:
cat <<EOF | oc apply -f -apiVersion: v1kind: ConfigMapmetadata:  name: custom-registries  namespace: multicluster-engine  labels:    app: assisted-servicedata:  registries.conf: |    unqualified-search-registries = ["registry.access.redhat.com", "docker.io"]
    [[registry]]    prefix = ""    location = "registry.redhat.io/quay"    mirror-by-digest-only = true
    [[registry.mirror]]      location = "quay.io/prega/test/quay"
    [[registry]]    prefix = ""    location = "registry.redhat.io/openshift-gitops-1"    mirror-by-digest-only = true
    [[registry.mirror]]      location = "quay.io/prega/test/openshift-gitops-1"
    [[registry]]    prefix = ""    location = "registry.redhat.io/odf4"    mirror-by-digest-only = true
    [[registry.mirror]]      location = "quay.io/prega/test/odf4"
    [[registry]]    prefix = ""    location = "registry.redhat.io/openshift-logging"    mirror-by-digest-only = true
    [[registry.mirror]]      location = "quay.io/prega/test/openshift-logging"
    [[registry]]    prefix = ""    location = "quay.io/prega"    mirror-by-digest-only = true
    [[registry.mirror]]      location = "quay.io/prega/test/prega"
    [[registry]]    prefix = ""    location = "registry.redhat.io/rhacm2"    mirror-by-digest-only = true
    [[registry.mirror]]      location = "quay.io/prega/test/rhacm2"
    [[registry]]    prefix = ""    location = "registry.redhat.io/multicluster-engine"    mirror-by-digest-only = true
    [[registry.mirror]]      location = "quay.io/prega/test/multicluster-engine"
    [[registry]]    prefix = ""    location = "registry.redhat.io/rhceph"    mirror-by-digest-only = true
    [[registry.mirror]]      location = "quay.io/prega/test/rhceph"
    [[registry]]    prefix = ""    location = "registry-proxy.engineering.redhat.com/rh-osbs"    mirror-by-digest-only = true
    [[registry.mirror]]      location = "quay.io/prega/test/rh-osbs"
    [[registry]]    prefix = ""    location = "registry.redhat.io/lvms4"    mirror-by-digest-only = true
    [[registry.mirror]]      location = "quay.io/prega/test/lvms4"
    [[registry]]    prefix = ""    location = "registry.redhat.io/cert-manager"    mirror-by-digest-only = true
    [[registry.mirror]]      location = "quay.io/prega/test/cert-manager"
    [[registry]]    prefix = ""    location = "registry.redhat.io/openshift4"    mirror-by-digest-only = true
    [[registry.mirror]]      location = "quay.io/prega/test/openshift4"
    [[registry]]    prefix = ""    location = "registry.redhat.io/rhel8"    mirror-by-digest-only = true
    [[registry.mirror]]      location = "quay.io/prega/test/rhel8"
    [[registry]]    prefix = ""    location = "registry.redhat.io/rh-sso-7"    mirror-by-digest-only = true
    [[registry.mirror]]      location = "quay.io/prega/test/rh-sso-7"---apiVersion: agent-install.openshift.io/v1beta1kind: AgentServiceConfigmetadata:  name: agent  namespace: multicluster-enginespec:  mirrorRegistryRef:    name: custom-registries  databaseStorage:    storageClassName: lvms-vg1    accessModes:    - ReadWriteOnce    resources:      requests:        storage: 10Gi  filesystemStorage:    storageClassName: lvms-vg1    accessModes:    - ReadWriteOnce    resources:      requests:        storage: 20Gi  osImages:  - cpuArchitecture: x86_64    openshiftVersion: "4.14"    rootFSUrl: https://rhcos.mirror.openshift.com/art/storage/prod/streams/4.14-9.2/builds/414.92.202307070025-0/x86_64/rhcos-414.92.202307070025-0-live-rootfs.x86_64.img    url: https://rhcos.mirror.openshift.com/art/storage/prod/streams/4.14-9.2/builds/414.92.202307070025-0/x86_64/rhcos-414.92.202307070025-0-live.x86_64.iso    version: 414.92.202307250657-0EOF

Since the introduction of multiclusterengine this ConfigMap it works only in the multicluster-engine namespace. 

OCPv4.12, v4.13, v4.14 ACMv2.6, v2.7 and v2.8

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https://docs.openshift.com/container-platform/4.12/scalability_and_performance/ztp_far_edge/ztp-preparing-the-hub-cluster.html#ztp-configuring-the-cluster-for-a-disconnected-environment_ztp-preparing-the-hub-cluster