message: super briefly document release process - for
  it's not very advanced so doesn't deserve a lot of mention this early.
  it does not mention stability guarantees yet, that's for to decide.
diff: @@ -25,6 +25,7 @@ We recommend turning off `default-features` for `k8s-openapi` to speed up your c
  ## Upgrading
  Please check the [CHANGELOG](./CHANGELOG.md) when upgrading.
  +All crates herein are versioned and [released](./release.toml) together to guarantee [compatibility before 1.0](https://github.com/clux/kube-rs/issues/508).
  ## Usage
  See the [examples directory](./examples) for how to use any of these crates.
  