Update jq usage on region check command

[matchge-ca]

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Resolve #10970

Updated the jq options for the region check command in the pd-control.md file.

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[Oreoxmt]

LGTM

[shichun-0415]

LGTM

[Oreoxmt]

/remove-status LGT1
/status LGT2

[Oreoxmt]

/merge

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

Commit hash: 084846c

[ti-chi-bot]

In response to a cherrypick label: new pull request created to branch release-6.5: #12829.

[ti-chi-bot]

In response to a cherrypick label: new pull request created to branch release-6.6: #12830.