Demo of an experimental lua-based markup language

fix help for rectangles and squares

Thanks John Blommers (https://github.com/akkartik/lines.love/issues/1#issuecomment-1159582457)

Created by  Kartik K. Agaram  on June 18, 2022
BERHYBXMPLRJKHXKCHGIMURTVGGE2FLF5JZPWR5WBVEF44DISIHQC
Change contents