Update SimuSCCS doc (fix typos and fix naming for exposure_type arg) and make the code PEP8 compliant
Update SimuSCCS doc (fix typos and fix naming for exposure_type arg) and make the code PEP8 compliant

X-DataInitiative/tick,X-DataInitiative/tick,X-DataInitiative/tick,Dekken/tick,X-DataInitiative/tick,Dekken/tick,Dekken/tick,Dekken/tick