Update articles/reliability/reliability-aks.md

Co-authored-by: Anastasia Harris <[email protected]>

Author: johndowns

articles/reliability/reliability-aks.md

@@ -180,9 +180,9 @@ Strive to use stateless clusters that minimize the need for backup. Store data i
 
 ## Reliability during service maintenance
 
-AKS performs maintenance on your cluster, including updates to the cluster and node images. Your pods should be configured to use pod disruption disruption budgets to ensure that sufficient capacity is available even during upgrades.
+AKS performs maintenance on your cluster, including updates to the cluster and node images.  To ensure that sufficient capacity is available even during upgrades, you should configure your pods to use pod disruption budgets.
 
-AKS provides controls for you to specify the times at which you want planned maintenance to occur. This helps you to reduce service disruptions during critical time periods.
+To reduce service disruptions during critical time periods, AKS provides controls so that you can specify planned maintenance times. 
 
 To learn more, see [Use planned maintenance to schedule and control upgrades for your Azure Kubernetes Service cluster](/azure/aks/planned-maintenance).