nanshe/nanshe/expanded_numpy.py: Correct docstring in nanmin_abs to say smallest.
nanshe/nanshe/expanded_numpy.py: Correct docstring in nanmin_abs to say smallest.

DudLab/nanshe,DudLab/nanshe,jakirkham/nanshe,nanshe-org/nanshe,nanshe-org/nanshe,jakirkham/nanshe