Update maintain-tidb-using-tiup.md#2693

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yikeke:update-tiup-maintain-doc

Jun 9, 2020

Commits on Jun 5, 2020

translate https://github.com/pingcap/docs-cn/pull/3204/ and https://github.com/pingcap/docs-cn/pull/3425/
yikeke
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Commits on Jun 9, 2020