Fix linting error

Author: Kate Osborn

site/content/how-to/traffic-management/upstream-settings.md

@@ -29,6 +29,7 @@ This guide will show you how to use the `UpstreamSettingsPolicy` API to configur
 For all the possible configuration options for `UpstreamSettingsPolicy`, see the [API reference]({{< relref "reference/api.md" >}}).
 
 ## Before you begin
+
 - [Install]({{< relref "/installation/" >}}) NGINX Gateway Fabric.
 - Save the public IP address and port of NGINX Gateway Fabric into shell variables: