Update README.md

[almereyda]

apps is out of beta

[almereyda]

Should we also add an example how to create an ingress?

https://kubernetes.io/docs/concepts/services-networking/ingress/#the-ingress-resource gives an example with Nginx, here we are using Traefik instead:

apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
  name: hello-world-ingress
spec:
  ingressClassName: traefik      
  rules:
  - http:
      paths:
      - path: /        
        pathType: Prefix
        backend:
          service:
            name: hello-world
            port:
              number: 80

I understand that Ingresses are very opinionated in their configuration, and can differ from case to case.

This is why I am asking how best to approach the Kubernetes example, in order that it feels complete and produces a website displayed on the computer.