Add archive note

Signed-off-by: Kevin Fox <Kevin.Fox@pnnl.gov>

README.md

@@ -1,40 +1,4 @@
-> **Note**: All the helm charts in this repo are beta. We encourage you to try them out and contribute. The API may change as we move towards a production ready release.
+This repository has been archived. There are two new repositories that take its place:
 
-# SPIFFE Helm Charts
-
-[![Apache 2.0 License](https://img.shields.io/github/license/spiffe/helm-charts)](https://opensource.org/licenses/Apache-2.0)
-[![Development Phase](https://github.com/spiffe/spiffe/blob/main/.img/maturity/dev.svg)](https://github.com/spiffe/spiffe/blob/main/MATURITY.md#development)
-[![Artifact Hub](https://img.shields.io/endpoint?url=https://artifacthub.io/badge/repository/spiffe)](https://artifacthub.io/packages/search?repo=spiffe)
-
-A suite of [Helm Charts](https://helm.sh/docs) for standardized installations of SPIRE components in Kubernetes environments.
-
-## Add Helm repository
-
-```bash
-helm repo add spiffe https://spiffe.github.io/helm-charts/
-helm repo update
-```
-
-## Dependencies and Version Compatibility
-
-Unless otherwise noted in an application chart README, the following dependencies will follow these prescribed version compatibility rules.
-
-| Dependency | Supported Versions |
-|:-----------|:-------------------|
-| SPIRE      | `1.6.x`, `1.7.x`   |
-| Helm       | `3.x`              |
-| Kubernetes | `1.22+`            |
-
-> **Note**: For Kubernetes, we will officially support the last 3 versions as described in [k8s versioning](https://kubernetes.io/releases/version-skew-policy/#supported-versions). Any version before the last 3 we will try to support as long it doesn't bring security issues or any big maintenance burden. *The first version we tested this chart with is `1.22`.*
-
-## Contributing
-
-Before contributing ensure to check our [CONTRIBUTING](CONTRIBUTING.md) guidelines.
-
-## LICENSE
-
-This project is licensed under [Apache License, Version 2.0](LICENSE).
-
-## Reporting a Vulnerability
-
-Vulnerabilities can be reported by sending an email to security@spiffe.io. A confirmation email will be sent to acknowledge the report within 72 hours. A second acknowledgement will be sent within 7 days when the vulnerability has been positively or negatively confirmed.
+* [Helm Charts Hardened](https://github.com/spiffe/helm-charts-hardened)
+* [Helm Charts Flex](https://github.com/spiffe/helm-charts-flex)