fix doc typo
fix doc typo

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