Merge pull request #74139 from kdrake20/HCIDOCS-194v4

HCIDOCS-194: SNO worker node support specification

Author: mburke5678

nodes/nodes/nodes-sno-worker-nodes.adoc

@@ -17,7 +17,7 @@ There are several ways that you can add worker nodes to a single-node cluster. Y
 
 [IMPORTANT]
 ====
-Adding worker nodes does not expand the cluster control plane, and it does not provide high availability to your cluster. For {sno} clusters, high availability is handled by failing over to another site. It is not recommended to add a large number of worker nodes to a single-node cluster.
+Adding worker nodes does not expand the cluster control plane, and it does not provide high availability to your cluster. For {sno} clusters, high availability is handled by failing over to another site. When adding worker nodes to {sno} clusters, a tested maximum of two worker nodes is recommended. Exceeding the recommended number of worker nodes might result in lower overall performance, including cluster failure.
 ====
 
 [NOTE]