Update iTerm README.md
Update iTerm README.md

change the link for Source Code Pro.  adobe -> adobe-fonts
pachou19/mac-setup,fpinzn/mac-setup,pushparajxa/mac-setup,mateuszroth/mac-setup,mmizutani/mac-setup,jk2K/mac-setup,katyprogrammer/mac-setup,potherca/mac-setup,potherca-contrib/mac-setup,at15/mac-setup,LeiShiMoveInc/mac-setup,stevennuo/mac-setup,mrhaki/mac-setup,andymcfee/mac-setup