message: fix client-support level badges
diff: [![Crates.io](https://img.shields.io/crates/v/kube.svg)](https://crates.io/crates/kube)
  [![Rust 1.56](https://img.shields.io/badge/MSRV-1.56-dea584.svg)](https://github.com/rust-lang/rust/releases/tag/1.56.0)
  [![Discord chat](https://img.shields.io/discord/500028886025895936.svg?logo=discord&style=plastic)](https://discord.gg/tokio)
  -[![Client Capabilities](https://img.shields.io/badge/Kubernetes%20client-Silver-blue.svg?style=plastic&colorB=C0C0C0&colorA=306CE8)](http://bit.ly/kubernetes-client-capabilities-badge)
  -[![Client Support Level](https://img.shields.io/badge/kubernetes%20client-beta-green.svg?style=plastic&colorA=306CE8)](http://bit.ly/kubernetes-client-support-badge)
  -[![Best Practices](https://bestpractices.coreinfrastructure.org/projects/5413/badge)](https://bestpractices.coreinfrastructure.org/projects/5413)
  -
  +[![Client Capabilities](https://img.shields.io/badge/Kubernetes%20client-Silver-blue.svg?style=plastic&colorB=C0C0C0&colorA=306CE8)](https://github.com/kubernetes/design-proposals-archive/blob/main/api-machinery/csi-new-client-library-procedure.md#client-capabilities)
  +[![Client Support Level](https://img.shields.io/badge/kubernetes%20client-beta-green.svg?style=plastic&colorA=306CE8)](https://github.com/kubernetes/design-proposals-archive/blob/main/api-machinery/csi-new-client-library-procedure.md#client-support-level)
  +[![Best Practices](https://bestpractices.coreinfrastructure.org/projects/5413/badge)](https://bestpractices.coreinfrastructure.org/projects/
  A [Rust](https://rust-lang.org/) client for [Kubernetes](http://kubernetes.io) in the style of a more generic [client-go](https://github.com/kubernetes/client-go), a runtime abstraction inspired by [controller-runtime](https://github.com/kubernetes-sigs/controller-runtime), and a derive macro for [CRDs](https://kubernetes.io/docs/tasks/extend-kubernetes/custom-resources/custom-resource-definitions/) inspired by [kubebuilder](https://book.kubebuilder.io/reference/generating-crd.html). Hosted by [CNCF](https://cncf.io/) as a [Sandbox Project](https://www.cncf.io/sandbox-projects/)
  These crates build upon Kubernetes [apimachinery](https://github.com/kubernetes/apimachinery/blob/master/pkg/apis/meta/v1/types.go) + [api concepts](https://kubernetes.io/docs/reference/using-api/api-concepts/) to enable generic abstractions. These abstractions allow Rust reinterpretations of reflectors, controllers, and custom resource interfaces, so that you can write applications easily.
  