readme: Update documentation about disableNative in tests
readme: Update documentation about disableNative in tests

jkesselring/jquery-json,timedepths/jquery-json,yangxing-star/jquery-json,timedepths/jquery-json,jkesselring/jquery-json,allsmy/jquery-json,Krinkle/jquery-json,an-yun/jquery-json,an-yun/jquery-json,yangxing-star/jquery-json,allsmy/jquery-json,Krinkle/jquery-json