Minor typo fix data-model.md

[Hack666r]

Pull Request Title

Fix Minor Typo in data-model.md

Description

This pull request fixes a minor typo in the data-model.md file to improve the clarity and professionalism of the documentation.

Summary of Changes

• Corrected a typo in the text for better readability and accuracy.

Checklist

• The change is limited to a typo correction and does not impact functionality.
• The documentation was reviewed for consistency and correctness.
• The contribution adheres to the repository's contributing guidelines.

Additional Information

This is my first pull request for this project. I'm excited to contribute further! Please let me know if additional adjustments are needed.

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Thank you for reviewing this PR! 😊

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