Add links to changelog

Author: maxvp

src/content/changelogs/gateway.yaml

@@ -8,7 +8,7 @@ entries:
   - publish_date: "2024-11-20"
     title: Category filtering in the network policy builder
     description: |-
-      Gateway users can now create network policies with the Content Categories and Security Risks traffic selectors. This update simplifies malicious traffic blocking and streamlines network monitoring for improved security management.
+      Gateway users can now create network policies with the [Content Categories](/cloudflare-one/policies/gateway/network-policies/#content-categories) and [Security Risks](/cloudflare-one/policies/gateway/network-policies/#security-risks) traffic selectors. This update simplifies malicious traffic blocking and streamlines network monitoring for improved security management.
   - publish_date: "2024-10-17"
     title: Per-account Cloudflare root certificate
     description: |-