Updated README.md with easier to read install instructions
Updated README.md with easier to read install instructions

Added line breaks and normalized command-line sections
fhfuih/MCEdit-Unified,Khroki/MCEdit-Unified,skinny121/MCEdit-TallWorlds,fhfuih/MCEdit-Unified,skinny121/MCEdit-TallWorlds,fhfuih/MCEdit-Unified,Khroki/MCEdit-Unified,Khroki/MCEdit-Unified,skinny121/MCEdit-TallWorlds