Update functions-for-customizing-application-data.md

[lcgkm]

fix typo error

[prmerger-automator[bot]]

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

[opbld32]

Learn Build status updates of commit 026da12:

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[Court72]

@kenwith

Can you review the proposed changes? IMPORTANT: When the changes are ready for publication, add a #sign-off comment to signal that the PR is ready for the review team to merge.

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

[kenwith]

#sign-off