BR: Update backup-and-restore-tool.md (#2664)#2722

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sre-bot wants to merge 7 commits into

pingcap:release-3.1from

sre-bot:release-3.1-9659fb82635c

Commits on Jun 8, 2020

cherry pick #2664 to release-3.1

toutdesuite
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sre-bot
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Update backup-and-restore-tool.md
toutdesuite
committed

Commits on Jun 11, 2020

Commits on Jun 14, 2020

Merge branch 'release-3.1' into release-3.1-9659fb82635c
toutdesuite
authored

Commits on Jun 16, 2020