add missing param `--name default` in example

Commands/storage/account/migration/_start.md

@@ -12,5 +12,5 @@ Account Migration request can be triggered for a storage account to change its r
 
 - migration start
     ```bash
-        storage account migration start --account-name "storage_account_name" -g "resource_group_name" --sku Standard_ZRS --no-wait
+        storage account migration start --account-name "storage_account_name" -g "resource_group_name" --sku Standard_ZRS --name default --no-wait
     ```

Commands/tree.json

@@ -117543,7 +117543,7 @@
                         "examples": [
                           {
                             "commands": [
-                              "storage account migration start --account-name \"storage_account_name\" -g \"resource_group_name\" --sku Standard_ZRS --no-wait"
+                              "storage account migration start --account-name \"storage_account_name\" -g \"resource_group_name\" --sku Standard_ZRS --name default --no-wait"
                             ],
                             "name": "migration start"
                           }