OCPBUGS-64635 added note to document

Author: wgabor0427

modules/installation-two-node-ingress-lb-configuration.adoc

@@ -4,25 +4,29 @@
 
 You must configure an external Ingress load balancer (LB) before you install a two-node OpenShift cluster with fencing. The Ingress LB forwards external application traffic to the Ingress Controller pods that run on the control plane nodes. Both nodes can actively receive traffic.
 
+[NOTE]
+====
+An external load balancer is recommended for production deployments but is not required.
+====
+
 .Prerequisites
 
-* You have two control plane nodes with fencing enabled.  
-* You have network connectivity from the load balancer to both control plane nodes.  
-* You created DNS records for `api.<cluster_name>.<base_domain>` and `*.apps.<cluster_name>.<base_domain>`.  
-* You have an external load balancer that supports health checks on endpoints.  
+* You have two control plane nodes with fencing enabled.
+* You have network connectivity from the load balancer to both control plane nodes.
+* You created DNS records for `api.<cluster_name>.<base_domain>` and `*.apps.<cluster_name>.<base_domain>`.
 
 .Procedure
 
 . Configure the load balancer to forward traffic for the following ports:
 +
-* `6443`: Kubernetes API server  
+* `6443`: Kubernetes API server
 * `80` and `443`: Application ingress
 +
 You must forward traffic to both control plane nodes.
 
 . Configure health checks on the load balancer. You must monitor the backend endpoints so that the load balancer only sends traffic to nodes that respond.
 
-. Configure the load balancer to forward traffic to both control plane nodes. The following example shows how to configure two control plane nodes:  
+. Configure the load balancer to forward traffic to both control plane nodes. The following example shows how to configure two control plane nodes:
 +
 [source,terminal]
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