BZ-2084280 Separating required API table into required and optional tables

Author: bscott-rh

modules/installation-gcp-enabling-api-services.adoc

@@ -28,7 +28,7 @@ to complete {product-title} installation.
 .Procedure
 
 * Enable the following required API services in the project that hosts your
-cluster. See
+cluster. You may also enable optional API services which are not required for installation. See
 link:https://cloud.google.com/service-usage/docs/enable-disable#enabling[Enabling services]
 in the GCP documentation.
 +
@@ -37,17 +37,9 @@ in the GCP documentation.
 |===
 |API service |Console service name
 
-ifdef::template[]
-|Cloud Deployment Manager V2 API
-|`deploymentmanager.googleapis.com`
-endif::template[]
-
 |Compute Engine API
 |`compute.googleapis.com`
 
-|Google Cloud APIs
-|`cloudapis.googleapis.com`
-
 |Cloud Resource Manager API
 |`cloudresourcemanager.googleapis.com`
 
@@ -60,6 +52,21 @@ endif::template[]
 |Identity and Access Management (IAM) API
 |`iam.googleapis.com`
 
+|===
++
+.Optional API services
+[cols="2a,3a",options="header"]
+|===
+|API service |Console service name
+
+ifdef::template[]
+|Cloud Deployment Manager V2 API
+|`deploymentmanager.googleapis.com`
+endif::template[]
+
+|Google Cloud APIs
+|`cloudapis.googleapis.com`
+
 |Service Management API
 |`servicemanagement.googleapis.com`