[refactor] Add `help` command
[refactor] Add `help` command

rakyll/forever,ContinuumIO/forever,kethle/forever,kethle/forever,jotham/forever,JJediny/forever,ryan321/forever,foreverjs/forever,saisai/forever,ryan321/forever,nguyen-tien-mulodo/forever,rakyll/forever,rbramwell/forever,yyx990803/forever,arnabsinha4u/demo-documentation,ContinuumIO/forever,nguyen-tien-mulodo/forever,foreverjs/forever,arnabsinha4u/demo-documentation,vcarrera/forever,Jonekee/forever,JJediny/forever,yyx990803/forever,vcarrera/forever,jqk6/forever,jotham/forever,rbramwell/forever,saisai/forever,Jonekee/forever,jqk6/forever