Fix broken link in docs/related.md

Looks like this hackernoon link is now broken, probably from when they moved off of Medium.
Signed-off-by: Pete Hodgson <git@thepete.net>

docs/related.md

@@ -14,7 +14,7 @@ or [pull request](https://github.com/helm/helm/pulls).
 - [GitLab, Consumer Driven Contracts, Helm and Kubernetes](https://medium.com/@enxebre/gitlab-consumer-driven-contracts-helm-and-kubernetes-b7235a60a1cb#.xwp1y4tgi)
 - [Honestbee's Helm Chart Conventions](https://gist.github.com/so0k/f927a4b60003cedd101a0911757c605a)
 - [Releasing backward-incompatible changes: Kubernetes, Jenkins, Prometheus Operator, Helm and Traefik](https://medium.com/@enxebre/releasing-backward-incompatible-changes-kubernetes-jenkins-plugin-prometheus-operator-helm-self-6263ca61a1b1#.e0c7elxhq)
-- [The Missing CI/CD Kubernetes Component: Helm package manager](https://hackernoon.com/the-missing-ci-cd-kubernetes-component-helm-package-manager-1fe002aac680#.691sk2zhu)
+- [The Missing CI/CD Kubernetes Component: Helm package manager](https://medium.com/@gajus/the-missing-ci-cd-kubernetes-component-helm-package-manager-1fe002aac680)
 - [Using Helm to Deploy to Kubernetes](https://daemonza.github.io/2017/02/20/using-helm-to-deploy-to-kubernetes/)
 - [Writing a Helm Chart](https://www.influxdata.com/packaged-kubernetes-deployments-writing-helm-chart/)
 - [A basic walk through Kubernetes Helm](https://github.com/muffin87/helm-tutorial)