updated readmes, upated diagram

added png image and replaced the it in the readme too

updated readme, removed png and added svg for the overview diagram

note added at the top of the readme

updated READMEs'

detailed readme written

removed the uri rewrite rule from the frontend istiovirtualservice

made a uri rewrite rule change in the frontend istioirtualservice

Frontend yamls added to the gitops folder and knaitve serving yamls added

nother host added in configmap

argocd app configured

new namespaces created, new sealedsecrets created

removed knative folder from gitops folder to take down the knative servings

frontend bluedeployment via knative serving yml added int the knative folder in the gitops folder

Added virtualservice ymls for all the backend services in the istiovirtualservice folder in the gitops folder