Update documentation (#98)

* update README with known issue devfile/api#1626

Signed-off-by: Michael Valdron <mvaldron@redhat.com>

* update CLUSTER_SUPPORT.md with current cluster support information

Signed-off-by: Michael Valdron <mvaldron@redhat.com>

* update cluster requirements under README

Signed-off-by: Michael Valdron <mvaldron@redhat.com>

---------

Signed-off-by: Michael Valdron <mvaldron@redhat.com>

CLUSTER_SUPPORT.md

@@ -5,14 +5,11 @@ systems based on which Operator SDK version the registry operator
 is using as well as the API overlap between OpenShift and 
 Kubernetes. 
 
-|                   | OpenShift 4.12.x |
-|:-----------------:|:----------------:|
-| Kubernetes 1.25.x |        X         |
-| Kubernetes 1.26.x |        X         |
+Operator currently targets Kubernetes 1.29 API and is tested on OpenShift 4.15.
 
 ## Operator SDK
 
-Current version in use by the Registry Operator is [Operator SDK v1.28.0](https://sdk.operatorframework.io/docs/upgrading-sdk-version/v1.28.0/).
+Current version in use by the Registry Operator is [Operator SDK v1.28.0](https://sdk.operatorframework.io/docs/upgrading-sdk-version/v1.28.0/), planned to use [Operator SDK v1.36.0](https://sdk.operatorframework.io/docs/upgrading-sdk-version/v1.36.0/) ([devfile/api#1626](https://github.com/devfile/api/issues/1626)) to be in sync with target Kubernetes 1.29 version.
 
 To update the Operator SDK, refer to [Upgrade SDK Version](https://sdk.operatorframework.io/docs/upgrading-sdk-version/) 
 and change the following

README.md

@@ -35,8 +35,10 @@ This repository utilizes Release Notes to track and display changes, a changelog
 
 Deployment cluster must meet one of the following criteria:
 
-- OpenShift Container Platform (OCP) 4.12.x
-- Kubernetes 1.25.x-1.26.x
+- OpenShift Container Platform (OCP) 4.15.x
+- Kubernetes 1.29.x
+
+**Note**: Though full support for OpenShift Container Platform (OCP) 4.16.x is not currently in place, it [includes Kubernetes 1.29.x APIs](https://docs.openshift.com/container-platform/4.16/release_notes/ocp-4-16-release-notes.html#ocp-4-16-admin-ack-updating_release-notes) therefore should work in theory.
 
 More on the support of container orchestration systems can be 
 found [here](CLUSTER_SUPPORT.md).
@@ -173,4 +175,5 @@ Please see our [CONTRIBUTING.md](./CONTRIBUTING.md).
 ## Known Issues
 - [`make test-integration` times out when running in Minikube](https://github.com/devfile/api/issues/1313)
 - [Headless mode field does not update devfile registry state during reconcile](https://github.com/devfile/api/issues/1258)
-- [`make bundle` removes `alm-examples` for `DevfileRegistriesList` and `ClusterDevfileRegistriesList` CRDs due to bug with Kustomize](https://github.com/kubernetes-sigs/kustomize/issues/5042)
+- [`make bundle` removes `alm-examples` for `DevfileRegistriesList` and `ClusterDevfileRegistriesList` CRDs due to bug with Kustomize](https://github.com/kubernetes-sigs/kustomize/issues/5042)
+- [Operator SDK is out of sync, should be upgraded to v1.36.0](https://github.com/devfile/api/issues/1626)