Fix some notes for Azure users (#9159)

* Fix some notes for Azure users

As is said in the docs (https://docs.microsoft.com/en-us/azure/aks/static-ip#create-static-ip-address), it must be the cluster node's resource group, not the cluster's resource group.

* A few minor changes to adhere to the style guide

Author: lmcarreiro

content/en/docs/concepts/services-networking/service.md

@@ -467,8 +467,7 @@ cloud provider does not support the feature, the field will be ignored.
 
 **Special notes for Azure**: To use user-specified public type `loadBalancerIP`, a static type
 public IP address resource needs to be created first, and it should be in the same resource
-group of the cluster. Specify the assigned IP address as loadBalancerIP. Verify you have 
-securityGroupName in the cloud provider configuration file.
+group of the other automatically created resources of the cluster. For example, `MC_myResourceGroup_myAKSCluster_eastus`. Specify the assigned IP address as loadBalancerIP. Ensure that you have updated the securityGroupName in the cloud provider configuration file. For information about troubleshooting `CreatingLoadBalancerFailed` permission issues see, [Use a static IP address with the Azure Kubernetes Service (AKS) load balancer](https://docs.microsoft.com/en-us/azure/aks/static-ip) or [CreatingLoadBalancerFailed on AKS cluster with advanced networking](https://github.com/Azure/AKS/issues/357).
 
 #### Internal load balancer
 In a mixed environment it is sometimes necessary to route traffic from services inside the same VPC.