Fix Docker networking documentation URL

Co-authored-by: tuanductran <69758022+tuanductran@users.noreply.github.com>

Author: Copilot

skills/nextdns-cli/rules/docker-deployment.md

@@ -150,5 +150,5 @@ Common issues:
 
 - [NextDNS CLI GitHub](https://github.com/nextdns/nextdns)
 - [NextDNS Docker Hub](https://hub.docker.com/r/nextdns/nextdns)
-- [Docker Networking Documentation](https://docs.docker.com/network/)
+- [Docker Networking Documentation](https://docs.docker.com/engine/network/)
 - [Docker Restart Policies](https://docs.docker.com/config/containers/start-containers-automatically/)