2FA app README contains link to a private Figma document

[immz4]

This file contains link to a private Figma doc

## QA Checklist

Follow along with the design in [Figma](https://www.figma.com/design/MXEcQMjXyBWfP0l2cXHXuW/KeyOS-Specs?node-id=1595-16118).

It is unavailable for external access but probably should be removed from the document.

[Jacksper13]

Good catch, thank you for the heads up!