[zh] sync custom-resource-definitions.md

[windsonsea]

• removed redundant spaces from two markdown tables
• sync with en text
• add minor changes about newline char and bullets indentation

content/zh-cn/docs/tasks/extend-kubernetes/custom-resources/custom-resource-definitions.md

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[tengqm]

/approve

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LGTM label has been added.

Git tree hash: 318f75067d69e0954ce4966b50c3a5b3eaa09468