fix: use Node.js and not NodeJS

[Trott]

The runtime is called Node.js, not NodeJS.

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Learn Build status updates of commit 00c22e1:

:white_check_mark: Validation status: passed

File	Status	Preview URL	Details
hub/dev-environment/javascript/nodejs-on-windows.md	:white_check_mark:Succeeded

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[mattwojo]

Thanks for the fix!