Update ai-generate-chunks-transact-sql.md

[SQLBigEyesDad]

According to my test, chunk_type = 'FIXED', string type

[prmerger-automator]

@SQLBigEyesDad : Thanks for your contribution! The author(s) and reviewer(s) have been notified to review your proposed change.

[learn-build-service-prod]

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[v-dirichards]

@JetterMcTedder

Can you review the proposed changes?

Important: When the changes are ready for publication, adding a #sign-off comment is the best way to signal that the PR is ready for the review team to merge.

#label:"aq-pr-triaged"
@MicrosoftDocs/public-repo-pr-review-team

[JetterMcTedder]

@JetterMcTedder

Can you review the proposed changes?

Important: When the changes are ready for publication, adding a #sign-off comment is the best way to signal that the PR is ready for the review team to merge.

#label:"aq-pr-triaged" @MicrosoftDocs/public-repo-pr-review-team

I do not approve of these changes @v-dirichards

[JetterMcTedder]

I do not approve of these changes.

It is FIXED, not 'FIXED'

[v-dirichards]

#please-close