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Can you please add "Lundquist_number" (and "Lu_" if we're keeping it) tho this if-clause in plasmapy.formulary.parameters? This bit is a little weird, but we have to do it for now so plasmapy.formulary.parameters remains backwards compatible until version 0.9.0. This should also fix the documentation build error.

The changes look pretty reasonable to me 👍🏻 I'll hold off for @rocco8773's opinion though.

LGTM, let's not hold it any longer :)