Needs approval from an approver in each of these files:
- ~~[content/en/docs/components/spark-operator/OWNERS](https://github.com/kubeflow/website/blob/master/content/en/docs/components/spark-operator/OWNERS)~~ [yuchaoran2011]
Approvers can indicate their approval by writing `/approve` in a comment
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Update the user guide to run multiple Spark operator instances