Apply suggestions from R review

Acrolinx fixes.

Author: AnnaMHuff

articles/backup/azure-kubernetes-service-backup-troubleshoot.md

@@ -178,9 +178,9 @@ However, if the number of resources in the cluster exceeds 1000, the pods may re
 
 **Recommended action**: To ensure successful backup and restore operations, manually update the resource settings for the extension pods by following these steps:
 
-1. Open the AKS cluster in the Azure Portal.
+1. Open the AKS cluster in the Azure portal.
 
-    ![Screenshot shows AKS cluster in Azure Portal.](./media/azure-kubernetes-service-cluster-manage-backups/aks-cluster.png)
+    ![Screenshot shows AKS cluster in Azure portal.](./media/azure-kubernetes-service-cluster-manage-backups/aks-cluster.png)
 
 1. Navigate to Extensions + Applications under Settings in the left-hand pane.
 

articles/backup/azure-kubernetes-service-cluster-backup-support-matrix.md

@@ -92,7 +92,7 @@ You can use [Azure Backup](./backup-overview.md) to help protect Azure Kubernete
 
 - Currently, backup instances with <= 100 disks attached as persistent volume are supported. Backup and restore operations might fail if number of disks are higher than the limit. 
 
-- Only Azure Disks with public access enabled from all networks are eligible to be moved to the Vault Tier; if ther are disks with network access apart from public access, tiering operation will fail. 
+- Only Azure Disks with public access enabled from all networks are eligible to be moved to the Vault Tier; if there are disks with network access apart from public access, tiering operation will fail. 
 
 - *Disaster Recovery* feature is only available between Azure Paired Regions (if backup is configured in a Geo Redundant Backup vault). The backup data is only available in an Azure paired region. For example, if you have an AKS cluster in East US that is backed up in a Geo Redundant Backup vault, the backup data is also available in West US for restore.
 

articles/backup/azure-kubernetes-service-cluster-manage-backups.md

@@ -123,9 +123,9 @@ However, if the number of resources in the cluster exceeds 1000, the pods may re
 
 To ensure successful backup and restore operations, manually update the resource settings for the extension pods by following these steps:
 
-1. Open the AKS cluster in the Azure Portal.
+1. Open the AKS cluster in the Azure portal.
 
-    ![Screenshot shows AKS cluster in Azure Portal.](./media/azure-kubernetes-service-cluster-manage-backups/aks-cluster.png)
+    ![Screenshot shows AKS cluster in Azure portal.](./media/azure-kubernetes-service-cluster-manage-backups/aks-cluster.png)
 
 1. Navigate to Extensions + Applications under Settings in the left-hand pane.