(AzureCXP) fixed typo in command

fixed typo in CLI command
resolves MicrosoftDocs/azure-docs#122035

Author: MayankBargali-MSFT

articles/azure-app-configuration/overview-managed-identity.md

@@ -85,7 +85,7 @@ The following steps will walk you through creating a user-assigned identity and
 1. Create a user-assigned identity called `myUserAssignedIdentity` using the CLI.
 
     ```azurecli-interactive
-    az identity create -resource-group myResourceGroup --name myUserAssignedIdentity
+    az identity create --resource-group myResourceGroup --name myUserAssignedIdentity
     ```
 
     In the output of this command, note the value of the `id` property.