Fix CustomContent format in note

[Oreoxmt]

Signed-off-by: Aolin aolin.zhang@pingcap.com

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[ti-chi-bot]

[REVIEW NOTIFICATION]

This pull request has been approved by:

• qiancai

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[qiancai]

LGTM

[Oreoxmt]

/merge

[ti-chi-bot]

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

Commit hash: 78af8d1

[Oreoxmt]

/cherry-pick release-6.4

[Oreoxmt]

/cherry-pick release-6.3

[Oreoxmt]

/cherry-pick release-6.2

[Oreoxmt]

/cherry-pick release-6.1

[ti-chi-bot]

@Oreoxmt: new pull request created to branch release-6.4: #11605.

In response to this:

/cherry-pick release-6.4

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[ti-chi-bot]

@Oreoxmt: new pull request created to branch release-6.3: #11606.

In response to this:

/cherry-pick release-6.3

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the ti-community-infra/tichi repository.

[ti-chi-bot]

@Oreoxmt: new pull request created to branch release-6.2: #11607.

In response to this:

/cherry-pick release-6.2

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the ti-community-infra/tichi repository.

[ti-chi-bot]

@Oreoxmt: new pull request created to branch release-6.1: #11608.

In response to this:

/cherry-pick release-6.1

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the ti-community-infra/tichi repository.