Mistake in CayleyDickson.v

[Alizter]

In CayleyDickson.v we mistakenly define conjugation on a suspension as:

Coq-HoTT/theories/Homotopy/CayleyDickson.v

Lines 66 to 74 in e56b4fa

	Global Instance conjugate_susp (A : Type) `(Negate A)
	: Conjugate (Susp A).
	Proof.
	srapply Susp_rec.
	+ exact North.
	+ exact South.
	+ intro a.
	exact (merid a).
	Defined.

It should be merid (-a) rather than merid a.

This means that the H-space structure we get out of the Cayley-Dickson construction is incorrect.