Update default properties in README
Update default properties in README

safetychanger/IDBWrapper,mizchi/idb-wrapper-promisify,jensarps/IDBWrapper,rubenstolk/IDBWrapper,rubenstolk/IDBWrapper,GerHobbelt/IDBWrapper,jayfunk/IDBWrapper,kilbot/IDBWrapper,mizchi/idb-wrapper-promisify,jensarps/IDBWrapper,jayfunk/IDBWrapper,kilbot/IDBWrapper,safetychanger/IDBWrapper