Update README.md

typo ;)

* commit the istio catalog

* update istio chart questions and fix templates

* move istio to the proposed folder and fixed gke ingress setting

Remove redundant section in prometheus requirements

fixed service.type (grafana, alertmanager)

fixed: using .service.type instead of .server.type for grafana and alertmanager type in questions.yml

update the readme

fix with adding default ingress host

Text updates