added link to k8sgpt operator docs

Signed-off-by: Iskren <iskren@kubermatic.com>

Author: iakmc

content/kubermatic/main/architecture/concept/kkp-concepts/applications/default-applications-catalog/_index.en.md

@@ -15,6 +15,7 @@ Here is the list of the applications that come as part of the Default Applicatio
 * [Falco]({{< ref "./falco/" >}})
 * [Flux2]({{< ref "./flux2/" >}})
 * [K8sGPT]({{< ref "./k8sgpt/" >}})
+* [K8sGPT-Operator]({{< ref "./k8sgpt/-operator" >}})
 * [KubeVIP]({{< ref "./kube-vip/" >}})
 * [KubeVirt]({{< ref "./kubevirt/" >}})
 * [MetalLB]({{< ref "./metallb/" >}})