parser: fix some deadlinks

[you06]

What problem does this PR solve?

Issue Number: close #41241

Problem Summary:

Fix some deadlinks in parser package.

Rendered

What is changed and how it works?

Check List

Tests

• Unit test
• Integration test
• Manual test (add detailed scripts or steps below)
• No need to test

  • I checked and no code files have been changed.

Side effects

• Performance regression: Consumes more CPU
• Performance regression: Consumes more Memory
• Breaking backward compatibility

Documentation

• Affects user behaviors
• Contains syntax changes
• Contains variable changes
• Contains experimental features
• Changes MySQL compatibility

Release note

Please refer to Release Notes Language Style Guide to write a quality release note.

None

[tiprow]

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[you06]

@hawkingrei shall we also remove this line since SIG is archived in community repo?

tidb/pkg/parser/README.md

Line 35 in 6e8df18

If you want to join as a special interest group member, see [DDL Special Interest Group](https://github.com/pingcap/community/tree/master/special-interest-groups/sig-ddl).

[hawkingrei]

@hawkingrei shall we also remove this line since SIG is archived in community repo?

tidb/pkg/parser/README.md

Line 35 in 6e8df18

If you want to join as a special interest group member, see [DDL Special Interest Group](https://github.com/pingcap/community/tree/master/special-interest-groups/sig-ddl).

I think we can remove this line.

[you06]

@hawkingrei removed, PTAL

[ti-chi-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: hawkingrei, tiancaiamao

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[ti-chi-bot]

[LGTM Timeline notifier]

Timeline:

• 2023-11-13 06:21:28.239065769 +0000 UTC m=+4057285.826175937: ☑️ agreed by hawkingrei.
• 2023-11-13 06:54:37.97725651 +0000 UTC m=+4059275.564366655: ☑️ agreed by tiancaiamao.