doc: cleanedm added description for benchmark.py
doc: cleanedm added description for benchmark.py

rnixx/kivy,janssen/kivy,KeyWeeUsr/kivy,aron-bordin/kivy,kivy/kivy,akshayaurora/kivy,rnixx/kivy,Cheaterman/kivy,rafalo1333/kivy,rafalo1333/kivy,jkankiewicz/kivy,bionoid/kivy,tony/kivy,janssen/kivy,inclement/kivy,autosportlabs/kivy,manthansharma/kivy,matham/kivy,aron-bordin/kivy,manthansharma/kivy,matham/kivy,jegger/kivy,inclement/kivy,tony/kivy,jegger/kivy,darkopevec/kivy,janssen/kivy,rnixx/kivy,matham/kivy,darkopevec/kivy,jegger/kivy,tony/kivy,jkankiewicz/kivy,kived/kivy,LogicalDash/kivy,bionoid/kivy,bionoid/kivy,autosportlabs/kivy,bionoid/kivy,LogicalDash/kivy,KeyWeeUsr/kivy,jkankiewicz/kivy,akshayaurora/kivy,manthansharma/kivy,jegger/kivy,kived/kivy,akshayaurora/kivy,LogicalDash/kivy,darkopevec/kivy,aron-bordin/kivy,Cheaterman/kivy,Cheaterman/kivy,matham/kivy,darkopevec/kivy,aron-bordin/kivy,kivy/kivy,kivy/kivy,KeyWeeUsr/kivy,KeyWeeUsr/kivy,jkankiewicz/kivy,Cheaterman/kivy,LogicalDash/kivy,manthansharma/kivy,autosportlabs/kivy,rafalo1333/kivy,kived/kivy,inclement/kivy,janssen/kivy