Reference README.md update

Revert "allow traffic from istio-system everywhere"

allow traffic from istio-system everywhere

comment out default deny all

switch authorization policies to dry-run

fix(policies): remove kube-system core-dns authorization policy

feat(authorization): replace networkpolicies with authorizationpolicies

feat(labels): add default labels and istio ambient label

feat(outputs): output name

fix(variables): empty defaults for labels and annotations

feat(module): initial commit