docs: write out flag in `WSL/tutorials/wsl-database.md`

[hamirmahal]

fixes #1808.

[learn-build-service-prod[bot]]

Learn Build status updates of commit fdb0c23:

:bulb: Validation status: suggestions

File	Status	Preview URL	Details
WSL/tutorials/wsl-database.md	:bulb:Suggestion	View	Details

WSL/tutorials/wsl-database.md

• Line 1, Column 1: [Suggestion: uhf-header-id-missing] uhfHeaderID should not be null; specify the uhfHeaderID in global metadata of docfx.json file.

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[hamirmahal]

You're welcome!

[mattwojo]

Thanks @hamirmahal!

[hamirmahal]

You're welcome @mattwojo!