Merge pull request #209063 from RyanHill-MSFT/issues/97495-typo-in-step4

(Azure CXP) typo in azurecli command

Author: prmerger-automator[bot]

articles/storage/common/storage-network-security.md

@@ -312,7 +312,7 @@ You can manage virtual network rules for storage accounts through the Azure port
 4. Add a network rule for a virtual network and subnet.
 
     ```azurecli
-    $subnetid=(az network vnet subnet show --resource-group "myresourcegroup" --vnet-name "myvnet" --name "mysubnet" --query id --output tsv)
+    subnetid=$(az network vnet subnet show --resource-group "myresourcegroup" --vnet-name "myvnet" --name "mysubnet" --query id --output tsv)
     az storage account network-rule add --resource-group "myresourcegroup" --account-name "mystorageaccount" --subnet $subnetid
     ```