Merge pull request #828 from fluxcd/document-v2beta2

docs/spec: document `v2beta2` API

Author: hiddeco

README.md

@@ -38,6 +38,8 @@ operator.
   [notification-controller][])
 * Built-in Kustomize compatible Helm post renderer, providing support
   for strategic merge, JSON 6902 and images patches
+* Supports detecting and correcting in-cluster changes compared to the desired
+  state of the Helm release
 
 ## Guides
 
@@ -47,7 +49,7 @@ operator.
 
 ## Specifications
 
-* [API](docs/spec/v2beta1/README.md)
+* [API](docs/spec/v2beta2/README.md)
 * [Controller](docs/spec/README.md)
 
 [source-controller]: https://github.com/fluxcd/source-controller

docs/spec/README.md

@@ -35,6 +35,7 @@ actions that should be (conditionally) executed. Based on this the reconciler:
 - performs a Helm install or upgrade action if needed
 - performs a Helm test action if enabled
 - performs a reconciliation strategy (rollback, uninstall) and retries as configured if any Helm action failed
+- performs in cluster drift detection and correction if enabled
 
 The controller that runs these Helm actions relies on [source-controller](https://github.com/fluxcd/source-controller)
 for providing the Helm charts from Helm repositories or any other source that source-controller
@@ -50,7 +51,7 @@ trigger a Helm uninstall.
 Alerting can be configured with a Kubernetes custom resource that specifies a webhook address, and a
 group of `HelmRelease` resources to be monitored using the [notification-controller](https://github.com/fluxcd/notification-controller).
 
-The API design of the controller can be found at [helm.toolkit.fluxcd.io/v2beta1](./v2beta1/helmreleases.md).
+The API design of the controller can be found at [helm.toolkit.fluxcd.io/v2beta2](./v2beta2/helmreleases.md).
 
 ## Backward compatibility
 

docs/spec/v2beta2/README.md

@@ -0,0 +1,16 @@
+# helm.toolkit.fluxcd.io/v2beta2
+
+This is the v2beta2 API specification for declaratively managing Helm chart
+releases with Kubernetes manifests.
+
+## Specification
+
+- [HelmRelease CRD](helmreleases.md)
+  + [Example](helmreleases.md#example)
+  + [Writing a HelmRelease spec](helmreleases.md#writing-a-helmrelease-spec)
+  + [Working with HelmReleases](helmreleases.md#working-with-helmreleases)
+  + [HelmRelease Status](helmreleases.md#helmrelease-status)
+
+## Implementation
+
+* [helm-controller](https://github.com/fluxcd/helm-controller/)