Minor readme formatting stuff, including a typo fix in adv_settings
Minor readme formatting stuff, including a typo fix in adv_settings

anush0247/Zappa,scoates/Zappa,pjz/Zappa,michi88/Zappa,michi88/Zappa,mathom/Zappa,parroyo/Zappa,anush0247/Zappa,mathom/Zappa,pjz/Zappa,parroyo/Zappa,Miserlou/Zappa,scoates/Zappa,Miserlou/Zappa,longzhi/Zappa,longzhi/Zappa