OCPBUGS-31432: Added user-managed LB prereq to said documents

Author: dfitzmau

modules/nw-autoscaling-ingress-controller.adoc

@@ -14,6 +14,7 @@ The following procedure provides an example for scaling up the default Ingress C
 
 * You have the {oc-first} installed.
 * You have access to an {product-title} cluster as a user with the `cluster-admin` role.
+* {vmw-first} or bare-metal infrastructure only: You configured a user-managed load balancer for your cluster.
 * You installed the Custom Metrics Autoscaler Operator and an associated KEDA Controller.
 ** You can install the Operator by using the software catalog on the web console. After you install the Operator, you can create an instance of `KedaController`.
 
@@ -191,6 +192,7 @@ $ oc apply -f ingress-autoscaler.yaml
 ----
 
 .Verification
+
 * Verify that the default Ingress Controller is scaled out to match the value returned by the `kube-state-metrics` query by running the following commands:
 
 ** Use the `grep` command to search the Ingress Controller YAML file for the number of replicas:

modules/nw-scaling-ingress-controller.adoc

@@ -6,17 +6,20 @@
 [id="nw-ingress-controller-configuration_{context}"]
 = Scaling an Ingress Controller
 
-Manually scale an Ingress Controller to meeting routing performance or
-availability requirements such as the requirement to increase throughput. `oc`
-commands are used to scale the `IngressController` resource. The following
+Manually scale an Ingress Controller to meeting routing performance or availability requirements such as the requirement to increase throughput. `oc` commands are used to scale the `IngressController` resource. The following
 procedure provides an example for scaling up the default `IngressController`.
 
 [NOTE]
 ====
 Scaling is not an immediate action, as it takes time to create the desired number of replicas.
 ====
 
+.Prerequisites
+
+* {vmw-first} or bare-metal infrastructure only: You configured a user-managed load balancer for your cluster.
+
 .Procedure
+
 . View the current number of available replicas for the default `IngressController`:
 +
 [source,terminal]