Added optional argument to sort sets by Height. Changed usage comment on line 13. Fixed typos.
Added optional argument to sort sets by Height.
Changed usage comment on line 13.
Fixed typos.

NathaTerrien/Natha-roll20-api-scripts,Cazra/roll20-api-scripts,symposion/roll20-api-scripts,symposion/roll20-api-scripts,Cazra/roll20-api-scripts,Roll20/roll20-api-scripts,shdwjk/roll20-api-scripts,NathaTerrien/Natha-roll20-api-scripts,Roll20/roll20-api-scripts,shdwjk/roll20-api-scripts,Cazra/roll20-api-scripts,Roll20/roll20-api-scripts,shdwjk/roll20-api-scripts