Add separator to fix the tabs and a missing section

Author: Mukesh Dua

articles/microsoft-discovery/how-to-enable-audit-logging.md

@@ -72,6 +72,8 @@ $log = New-AzDiagnosticSettingLogSettingsObject `
     -CategoryGroup "audit"
 ```
 
+---
+
 ## Export to a storage account
 
 Use the `New-AzDiagnosticSetting` cmdlet to create a diagnostic setting that sends logs to a storage account. Select the tab for your Discovery resource type and replace the `<placeholder>` values with your resource information.