[zh] Sync taint and toleration example

[minchao]

Fix example of remove the taint added to:

kubectl taint nodes node1 key1=value1:NoSchedule-

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[tengqm]

Thanks.
/lgtm
/approve

[k8s-ci-robot]

LGTM label has been added.

Git tree hash: a0518df6992148edf057e7584509b05f9d085ab7

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This pull-request has been approved by: tengqm

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