Fix font-family syntax in fonts.mdx

[pawelgrzybek]

Description (required)

The name of the custom property shouldn't be quoted.

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[ArmandPhilippot]

Thanks for the PR, but I don't think we need this change.

This is a CSS variable, using var() doesn't require quotes. See: https://developer.mozilla.org/en-US/docs/Web/CSS/Guides/Cascading_variables/Using_custom_properties#referencing_custom_properties_with_var

If you have troubles using the Font API do not hesitate to create a support thread on Discord, our community will be happy to help you!

[ArmandPhilippot]

Oh, sorry for closing this. I misread the diff. I thought you were adding quotes... 🤦🏽

Thank you for noticing this, and welcome to team docs! 🥳