Update QRL Testnet Setup.md
Update QRL Testnet Setup.md

Added sudo on Install QRL Dependencies
cyyber/QRL,elliottdehn/QRL,theQRL/QRL,randomshinichi/QRL,elliottdehn/QRL,theQRL/QRL,jleni/QRL,jleni/QRL,elliottdehn/QRL,randomshinichi/QRL,elliottdehn/QRL,cyyber/QRL