Updated CFE-266 doc work

Author: darshan-nagaraj

networking/external_dns_operator/nw-control-dns-records-public-hosted-zone-aws.adoc

@@ -62,7 +62,7 @@ HOSTEDZONES	terraform	/hostedzone/Z02355203TNN1XXXX1J6O	testextdnsoperator.apacs
 +
 [source,yaml]
 ----
-apiVersion: externaldns.olm.openshift.io/v1alpha1
+apiVersion: externaldns.olm.openshift.io/v1beta1
 kind: ExternalDNS
 metadata:
   name: sample-aws <1>

networking/external_dns_operator/nw-control-dns-records-public-hosted-zone-azure.adoc

@@ -66,7 +66,7 @@ $ az network dns zone list --resource-group "${RESOURCE_GROUP}"
 +
 [source,yaml]
 ----
-apiVersion: externaldns.olm.openshift.io/v1alpha1
+apiVersion: externaldns.olm.openshift.io/v1beta1
 kind: ExternalDNS
 metadata:
   name: sample-azure <1>

networking/external_dns_operator/nw-control-dns-records-public-managed-zone-gcp.adoc

@@ -78,7 +78,7 @@ qe-cvs4g-private-zone test.gcp.example.com
 +
 [source,yaml]
 ----
-apiVersion: externaldns.olm.openshift.io/v1alpha1
+apiVersion: externaldns.olm.openshift.io/v1beta1
 kind: ExternalDNS
 metadata:
   name: sample-gcp <1>

networking/external_dns_operator/nw-installing-external-dns-operator.adoc

@@ -8,12 +8,6 @@
 
 You can install the External DNS Operator using the Red Hat OpenShift Container Platform Operator Hub.
 
-.Prerequisites
-
-* You have logged in to the {product-title} web console as a user with `cluster-admin` permissions.
-* You have created the operand `external-dns` namespace by running `oc create ns external-dns` command.
-* You have granted the operator access to manage operand resources by running `oc apply -f https://raw.githubusercontent.com/openshift/external-dns-operator/release-0.1/config/rbac/extra-roles.yaml` command.
-
 .Procedure
 
 . Click *Operators* → *OperatorHub* in the OpenShift Web Console.
@@ -22,7 +16,7 @@ You can install the External DNS Operator using the Red Hat OpenShift Container
 . Select `external-dns-operator` namespace.
 . On the External DNS Operator page, click *Install*.
 . On the Install Operator page, ensure that you selected the following options:
-.. Update the channel as *stable-{product-version}*.
+.. Update the channel as *stable-v1.0*.
 .. Installation mode as *A specific name on the cluster*.
 .. Installed namespace as `external-dns-operator`. If Namespace `external-dns-operator` does not exist, it will be created during the operator installation.
 .. Select *Approval Strategy* as *Automatic* or *Manual*. Approval Strategy is set to Automatic by default.