update build an app docs to remove old config.js info and instead use api.js
update build an app docs to remove old config.js info and instead use api.js

othiym23/locker,quartzjer/Locker,othiym23/locker,quartzjer/Locker,Singly/hallway,LockerProject/Locker,Singly/hallway,LockerProject/Locker,quartzjer/Locker,quartzjer/Locker,LockerProject/Locker,othiym23/locker,LockerProject/Locker,LockerProject/Locker,othiym23/locker,quartzjer/Locker,othiym23/locker