Fix outbound link to Cilium K8s Installation Guide

Updated the outbound link to Intro to Cilium K8s and Installation Guide to reflect the new link on the Cilium site.

Author: elvinjgalarza

content/en/docs/tasks/administer-cluster/network-policy-provider/cilium-network-policy.md

@@ -72,7 +72,7 @@ policies using an example application.
 ## Deploying Cilium for Production Use
 
 For detailed instructions around deploying Cilium for production, see:
-[Cilium Kubernetes Installation Guide](https://docs.cilium.io/en/stable/kubernetes/intro/)
+[Cilium Kubernetes Installation Guide](https://docs.cilium.io/en/stable/concepts/kubernetes/intro/)
 This documentation includes detailed requirements, instructions and example
 production DaemonSet files.