DOC Fixed tenses and some other stuff.
DOC Fixed tenses and some other stuff.

dursk/pyfolio,sketchytechky/pyfolio,YihaoLu/pyfolio,sketchytechky/pyfolio,yanheven/pyfolio,quantopian/pyfolio,raybuhr/pyfolio,ChinaQuants/pyfolio,raybuhr/pyfolio,femtotrader/pyfolio,quantopian/pyfolio,ChinaQuants/pyfolio,YihaoLu/pyfolio,chayapan/pyfolio,yanheven/pyfolio,r0k3/pyfolio,r0k3/pyfolio,femtotrader/pyfolio,dursk/pyfolio