Support set secrets in block scalar with literal style

[matzegebbe]

Hey, awesome project!

for the Bitnami Minio Helm Chart I would like to generate a secret like this

apiVersion: v1
kind: Secret
metadata:
  name: centralized-minio-users
type: Opaque
stringData:
  username1: |
    username=test-username
    password=$MY_RENO_GEN_PW
    disabled=false
    policies=readwrite,consoleAdmin,diagnostics
    setPolicies=false

Is such a thing possible?