fix documentation for mac dev setup
fix documentation for mac dev setup

KiranNiranjan/SymphonyElectron,VishwasShashidhar/SymphonyElectron,KiranNiranjan/SymphonyElectron,KiranNiranjan/SymphonyElectron,VishwasShashidhar/SymphonyElectron,VishwasShashidhar/SymphonyElectron,VishwasShashidhar/SymphonyElectron,KiranNiranjan/SymphonyElectron