Clarifying note for need to approve CSRs

Author: quickcluster

modules/graceful-shutdown.adoc

@@ -10,7 +10,7 @@ You can shut down your cluster in a graceful manner so that it can be restarted
 
 [NOTE]
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-You can shut down a cluster until a year from the installation date and expect it to restart gracefully. After a year from the installation date, the cluster certificates expire.
+You can shut down a cluster until a year from the installation date and expect it to restart gracefully. After a year from the installation date, the cluster certificates expire. However, you might need to manually approve the pending certificate signing requests (CSRs) to recover kubelet certificates when the cluster restarts.
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 .Prerequisites
@@ -102,4 +102,4 @@ Cluster administrators are responsible for ensuring a clean restart of their own
 [IMPORTANT]
 ====
 If you deployed your cluster on a cloud-provider platform, do not shut down, suspend, or delete the associated cloud resources. If you delete the cloud resources of a suspended virtual machine, {product-title} might not restore successfully.
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+====