Update pvlib/spectrum/mismatch.py

Co-authored-by: Echedey Luis <80125792+echedey-ls@users.noreply.github.com>

Author: jesuspolo

pvlib/spectrum/mismatch.py

@@ -722,7 +722,6 @@ def spectral_factor_polo(precipitable_water, airmass_absolute, aod500, aoi,
     ----------
     precipitable_water : numeric
         atmospheric precipitable water. [cm]
-
     airmass_absolute : numeric
         Absolute airmass. [unitless]
     aod500 : numeric