Issue with the hydrogen rates

[LarsKlijn]

Hi Leonardo,

When checking my hydrogen rates, I think I found a small bug.
Line 560 of the hydrogen module:
final_alpha_rec = recombination(temperature) * k2_abs * final_rho * \
I think recombination(temperature) shouldn't be there, as it is already in the k2_abs term.

Cheers,

Lars

[ladsantos]

Thanks, Lars! This is now corrected in commit 39742ff.