Update kube-batch issue and pr template

[kerthcet]

This helps to better describe the problems and features

/kind documentation

Release note:

NONE

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is NOT APPROVED

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[k8s-ci-robot]

@kerthcet: The following test failed, say /retest to rerun all failed tests or /retest-required to rerun all mandatory failed tests:

Test name	Commit	Details	Required	Rerun command
pull-kube-batch-verify	171e4f5	link	true	/test pull-kube-batch-verify

Full PR test history. Your PR dashboard. Please help us cut down on flakes by linking to an open issue when you hit one in your PR.

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[kerthcet]

I think the test failure is not related, but I'll try to figure out.