docs: Document the extraction of data from a k8s resource (#6102)

* Document the extraction of data from a k8s resource

* remove reference to lines of a file that can be outdated

Co-authored-by: Yuan Tang <terrytangyuan@gmail.com>

* Remove yaml snippet and only keep the link to the example

Co-authored-by: Yuan Tang <terrytangyuan@gmail.com>

examples/README.md

@@ -1436,6 +1436,8 @@ Currently only a single resource can be managed by a resource template so either
 
 Resources created in this way are independent of the workflow. If you want the resource to be deleted when the workflow is deleted then you can use [Kubernetes garbage collection](https://kubernetes.io/docs/concepts/workloads/controllers/garbage-collection/) with the workflow resource as an owner reference ([example](./k8s-owner-reference.yaml)).
 
+You can also collect data about the resource in output parameters (see more at [k8s-jobs.yaml](./k8s-jobs.yaml))
+
 **Note:**
 When patching, the resource will accept another attribute, `mergeStrategy`, which can either be `strategic`, `merge`, or `json`. If this attribute is not supplied, it will default to `strategic`. Keep in mind that Custom Resources cannot be patched with `strategic`, so a different strategy must be chosen. For example, suppose you have the [CronTab CustomResourceDefinition](https://kubernetes.io/docs/tasks/access-kubernetes-api/custom-resources/custom-resource-definitions/#create-a-customresourcedefinition) defined, and the following instance of a CronTab: