Add paragraph linking out to Gateway analytics

Author: RebeccaTamachiro

src/content/docs/dns/internal-dns/analytics.mdx

@@ -3,4 +3,6 @@ pcx_content_type: how-to
 title: Analytics
 sidebar:
   order: 5
----
+---
+
+For information about processed requests, refer to [Gateway analytics](/cloudflare-one/insights/analytics/gateway/). For example, you can consider what domains had the highest number of allowed requests in a given period of time.