Merge pull request #29529 from buehler/patch-1

docs: Add "KubeOps" operator SDK to third-party list

Author: k8s-ci-robot

content/en/docs/concepts/extend-kubernetes/operator.md

@@ -114,6 +114,7 @@ Operator.
 
 * [Charmed Operator Framework](https://juju.is/)
 * [kubebuilder](https://book.kubebuilder.io/)
+* [KubeOps](https://buehler.github.io/dotnet-operator-sdk/) (dotnet operator SDK)
 * [KUDO](https://kudo.dev/) (Kubernetes Universal Declarative Operator)
 * [Metacontroller](https://metacontroller.github.io/metacontroller/intro.html) along with WebHooks that
   you implement yourself