Unit confusion in comments.

[Christopher-Bradshaw]

A potentially stupid question:

Would the comment

cosmology/cosmology/cosmology.py

Line 214 in 5bf087b

Calculate the angular diameter distance from zmin to zmax in units of Mpc.

more accurately end units of Mpc/radian.?

If I haven't misunderstood something I'd be happy to submit a PR to make this change where appropriate.

Thanks for the library!

[esheldon]

The units are Mpc, given the value of H0 specified on construction.