update doc
update doc

giampaolo/psutil,qbit/psutil,0-wiz-0/psutil,mrjefftang/psutil,mrjefftang/psutil,Q-Leap-Networks/psutil,jorik041/psutil,mrjefftang/psutil,giampaolo/psutil,cloudbase/psutil,0-wiz-0/psutil,jamesblunt/psutil,msarahan/psutil,qbit/psutil,msarahan/psutil,cloudbase/psutil,cloudbase/psutil,Q-Leap-Networks/psutil,jorik041/psutil,msarahan/psutil,qbit/psutil,packages/psutil,packages/psutil,jamesblunt/psutil,packages/psutil,jamesblunt/psutil,jorik041/psutil