Fix indentation

Author: maud-lv

articles/azure-app-configuration/quickstart-aspnet-core-app.md

@@ -146,8 +146,7 @@ Connect to your App Configuration store using Microsoft Entra ID (recommended),
     // The rest of existing code in program.cs
     // ... ...
     ```
-
----
+    ---
 
 This code loads *all* key-values that have *no label* from your App Configuration store. For more information on loading data from App Configuration, see the [App Configuration provider API reference](/dotnet/api/microsoft.extensions.configuration.azureappconfiguration.extensions).