update scripts

scripts/3.install-sealed-secrets.sh

@@ -0,0 +1,6 @@
+#!/bin/bash
+set -e
+
+helm repo add sealed-secrets https://bitnami-labs.github.io/sealed-secrets
+helm repo update
+helm install sealed-secrets -n kube-system --set-string fullnameOverride=sealed-secrets-controller sealed-secrets/sealed-secrets -f sealed-secrets-values.yaml