[Documentation] Add MXJob to supported Katib Worker types #1689
Description
/kind feature
After this PR: #1688 we should add MXJob to the supported Katib Workers: https://www.kubeflow.org/docs/components/katib/overview/#worker-job.
{{ message }}
/kind feature
After this PR: #1688 we should add MXJob to the supported Katib Workers: https://www.kubeflow.org/docs/components/katib/overview/#worker-job.