Erroneous energy conversion?

[m-schwendt]

There might be an error in the conversion of units in "def read_denpot" (at line 1172 in abipy/core/fields.py):
"fact = pmgu.Ha_to_eV / pmgu.bohr_to_angstrom ** 3" converts units as if the energy were given in Hartree/bohr**3 when in fact they are just Hartree (at least according to https://docs.abinit.org/guide/abinit/#56-the-potential-files).