tweaks on usage docs
tweaks on usage docs

jlecount-sungevity/holmium.core,alisaifee/holmium.core,tjlee/holmium.core,kejkz/holmium.core,alisaifee/holmium.core,kejkz/holmium.core,kejkz/holmium.core,alisaifee/holmium.core,jlecount-sungevity/holmium.core,alisaifee/holmium.core,tjlee/holmium.core,tjlee/holmium.core,tjlee/holmium.core,kejkz/holmium.core,jlecount-sungevity/holmium.core,jlecount-sungevity/holmium.core