Update use-br-command-line-tool.md (#5284)

[ti-srebot]

cherry-pick #5284 to release-5.0
You can switch your code base to this Pull Request by using git-extras:

# In docs repo:
git pr https://github.com/pingcap/docs/pull/5406

After apply modifications, you can push your change to this PR via:

git push git@github.com:ti-srebot/docs.git pr/5406:release-5.0-4945765063bb

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What is changed, added or deleted? (Required)

Which TiDB version(s) do your changes apply to? (Required)

• master (the latest development version)
• v5.0 (TiDB 5.0 versions)
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What is the related PR or file link(s)?

• This PR is translated from: Update use-br-command-line-tool.md docs-cn#5859
• Other reference link(s):

Do your changes match any of the following descriptions?

• Delete files
• Change aliases
• Need modification after applied to another branch
• Might cause conflicts after applied to another branch

[ti-srebot]

@Joyinqin you're already a collaborator in bot's repo.

[TomShawn]

/lgtm

[ti-chi-bot]

[REVIEW NOTIFICATION]

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• TomShawn

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[TomShawn]

/merge

[ti-chi-bot]

This pull request has been accepted and is ready to merge.

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Commit hash: 5684112