Update connection-azure-blob-storage.md

Author: tapanm-MSFT

powerapps-docs/maker/canvas-apps/connections/connection-azure-blob-storage.md

@@ -97,7 +97,7 @@ Now that you have the app connected to Azure Blob Storage, let's add galleries t
 
 1. Set the **Items** property of the gallery to:
 
-    ```powerapps-dot
+    ```power-fx
     AzureBlobStorage.ListRootFolderV2().value
     ```