some syntax fixes, added a section for macros usage that is needed
some syntax fixes, added a section for macros usage that is needed

alubbock/pysb-legacy,alubbock/pysb-legacy,pysb/pysb,neurord/pysb,d-fan/pysb,neurord/pysb,jmuhlich/pysb,alubbock/pysb,spgarbet/pysb,alubbock/pysb-legacy,spgarbet/pysb,spgarbet/pysb,d-fan/pysb,alubbock/pysb-legacy,LoLab-VU/pysb,johnbachman/pysb,johnbachman/pysb,LoLab-VU/pysb,neurord/pysb,d-fan/pysb