add license to readme
add license to readme

britg/MultistrokeGestureRecognizer-iOS,bengotow/MultistrokeGestureRecognizer-iOS,britg/MultistrokeGestureRecognizer-iOS,bengotow/MultistrokeGestureRecognizer-iOS,britg/MultistrokeGestureRecognizer-iOS,bengotow/MultistrokeGestureRecognizer-iOS,britg/MultistrokeGestureRecognizer-iOS