Add doc tip for nfs

Author: backwind1233

documentation/site/content/samples/azure-kubernetes-service/domain-on-pv.md

@@ -15,7 +15,7 @@ This sample demonstrates how to use the [WebLogic Kubernetes Operator](https://o
  - [Create Resource Group](#create-resource-group)
  - [Create an AKS cluster](#create-the-aks-cluster)
  - [Create and Configure Storage](#create-storage)
-   - [Create an Azure Storage account and NFS share](##create-an-azure-storage-account-and-nfs-share)
+   - [Create an Azure Storage account and NFS share](#create-an-azure-storage-account-and-nfs-share)
    - [Create SC and PVC](#create-sc-and-pvc)
  - [Install WebLogic Kubernetes Operator](#install-weblogic-kubernetes-operator-into-the-aks-cluster)
  - [Create WebLogic domain](#create-weblogic-domain)

documentation/site/content/samples/azure-kubernetes-service/includes/create-aks-cluster-storage.txt

@@ -34,6 +34,11 @@ You will dynamically create and use a persistent volume with Azure Files NFS sha
     Successful output will be a JSON object with the entry `"type": "Microsoft.Storage/storageAccounts"`.
 
 2. Create an NFS share.
+    {{% notice note %}} We strongly recommend NFS instead of SMB. NFS evolved from the UNIX operating system, and other variants such as GNU/Linux. For this reason, when using NFS with container technologies such as Docker, it is less likely to have problems for concurrent reads and file locking.
+
+    Please be sure to enable NFS v4.1. Versions lower than v4.1 will have problems.
+
+    {{% /notice %}}
 
     To create the file share, you must use `NoRootSquash` to allow the operator to change the ownership of the directory in the NFS share.