[zh] Sync 3 reference files in setup-tools/kubeadm/generated

[windsonsea]

Sync 3 files with en text:

content/zh-cn/docs/reference/setup-tools/kubeadm/generated/kubeadm_init_phase_show-join-command.md
content/zh-cn/docs/reference/setup-tools/kubeadm/generated/kubeadm_join_phase_wait-control-plane.md
content/zh-cn/docs/reference/setup-tools/kubeadm/generated/kubeadm_upgrade_node.md

See preview please.

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[tengqm]

/approve

[k8s-ci-robot]

LGTM label has been added.

Git tree hash: 616106caa362e8bb6f647e1076ffca63054954ba

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: tengqm, ydFu

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