Migrate to new ingress-nginx app

Changelog for 0.3.1:

• PR #105 Update name and location of nginx-ingress chart by @aledbf

Commits
81b23d9 Update name and location of nginx-ingress chart by @aledbf

nginx-ingress in the stable repo has moved to ingress-nginx in its own GitHub Pages Helm repo.

No immediate action is required, but you should now install via ingress-nginx.

arkade install --help

Install Kubernetes apps from helm charts or YAML files using the "install" 
command. Helm 3 is used by default unless you pass --helm3=false, then helm 2
will be used to generate YAML files which are applied without tiller.

You can also find the post-install message for each app with the "info" 
command.

Usage:
  arkade install [flags]
  arkade install [command]

Examples:
  arkade install
  arkade install openfaas --helm3 --gateways=2
  arkade install inlets-operator --token-file $HOME/do-token

Available Commands:
  argocd                  Install argocd
  cert-manager            Install cert-manager
  chart                   Install the specified helm chart
  cron-connector          Install cron-connector for OpenFaaS
  crossplane              Install Crossplane
  docker-registry         Install a Docker registry
  docker-registry-ingress Install registry ingress with TLS
  grafana                 Install grafana
  info                    Find info about a Kubernetes app
  ingress-nginx           Install ingress-nginx
  inlets-operator         Install inlets-operator
  istio                   Install istio
  jenkins                 Install jenkins
  kafka-connector         Install kafka-connector for OpenFaaS
  kube-state-metrics      Install kube-state-metrics
  kubernetes-dashboard    Install kubernetes-dashboard
  linkerd                 Install linkerd
  metrics-server          Install metrics-server
  minio                   Install minio
  mongodb                 Install mongodb
  openfaas                Install openfaas
  openfaas-ingress        Install openfaas ingress with TLS
  portainer               Install portainer to visualise and manage containers
  postgresql              Install postgresql
  tekton                  Install Tekton pipelines and dashboard
  traefik2                Install traefik2

Update with:

arkade update

Generated by Derek