doc: Update storage class parameters in YAML file

Author: andyzhangx

deploy/example/blobfuse-mi/storageclass-blobfuse-mi.yaml

@@ -7,9 +7,8 @@ provisioner: blob.csi.azure.com
 parameters:
   skuName: Premium_LRS
   protocol: fuse
-  resourceGroup: EXISTING_RESOURCE_GROUP_NAME  # optional, node resource group by default if it's not provided
-  storageAccount: EXISTING_STORAGE_ACCOUNT_NAME  # optional, a new account will be created if it's not provided
-  containerName: EXISTING_CONTAINER_NAME  # optional, a new container will be created if it's not provided
+  resourceGroup: EXISTING_RESOURCE_GROUP_NAME   # optional, node resource group by default if it's not provided
+  storageAccount: EXISTING_STORAGE_ACCOUNT_NAME # optional, a new account will be created if it's not provided
   AzureStorageAuthType: MSI
   AzureStorageIdentityClientID: "xxxxx-xxxx-xxx-xxx-xxxxxxx"
 reclaimPolicy: Delete