Updated intro with a bit more context about taints and toleraitons

Author: schaffererin

articles/kubernetes-fleet/concepts-fleet.md

@@ -1,7 +1,7 @@
 ---
 title: "Azure Kubernetes Fleet Manager and member clusters"
 description: This article provides a conceptual overview of Azure Kubernetes Fleet Manager and member clusters.
-ms.date: 04/01/2024
+ms.date: 04/23/2024
 author: shashankbarsin
 ms.author: shasb
 ms.service: kubernetes-fleet

articles/kubernetes-fleet/use-taints-tolerations.md

@@ -2,7 +2,7 @@
 title: "Use taints on member clusters and tolerations on cluster resource placements in Azure Kubernetes Fleet Manager"
 description: Learn how to use taints on `MemberCluster` resources and tolerations on `ClusterResourcePlacement` resources in Azure Kubernetes Fleet Manager.
 ms.topic: how-to
-ms.date: 04/19/2024
+ms.date: 04/23/2024
 author: schaffererin
 ms.author: schaffererin
 ms.service: kubernetes-fleet
@@ -12,6 +12,8 @@ ms.service: kubernetes-fleet
 
 This article explains how to add/remove taints on `MemberCluster` resources and tolerations on `ClusterResourcePlacement` resources in Azure Kubernetes Fleet Manager.
 
+Taints and tolerations work together to ensure member clusters only receive specified resources during resource propagation. Taints are applied to `MemberCluster` resources to prevent resources from being propagated to the member cluster. Tolerations are applied to `ClusterResourcePlacement` resources to allow resources to be propagated to the member cluster, even if the member cluster has a taint.
+
 ## Prerequisites
 
 * [!INCLUDE [free trial note](../../includes/quickstarts-free-trial-note.md)]