Update faq-managed-cluster.yml

Corrected usage of disallowed acronym AAD and fixed a missing word.

Author: AnnaMHuff

articles/service-fabric/faq-managed-cluster.yml

@@ -64,7 +64,7 @@ sections:
           This is supported with the 2021-07-01-preview release. See [Configure network settings for Service Fabric managed clusters](./how-to-managed-cluster-networking.md#byolb)
       
       - question: | 
-          Can I change the AAD tenant after initial deployment?
+          Can I change the  Azure AD tenant after initial deployment?
         answer: |
           No. At this time you would need to create a new Service Fabric managed cluster resource.
 
@@ -74,7 +74,7 @@ sections:
           This is supported with the 2021-07-01-preview release. See [Configure network settings for Service Fabric managed clusters](./how-to-managed-cluster-networking.md#ipv6)
 
       - question: |
-          I want use an existing VNet for a Service Fabric managed cluster, can I do that?
+          I want to use an existing VNet for a Service Fabric managed cluster, can I do that?
         answer: |
           This is supported with the 2021-07-01-preview release. See [Configure network settings for Service Fabric managed clusters](./how-to-managed-cluster-networking.md#byolb)