User:Yongjaeyjc

I added what you pointed out in my sandbox and added a reference to Wikipedia's live article. https://ko.wikipedia.org/wiki/%EB%8C%80%ED%95%9C%EB%AF%BC%EA%B5%AD%EC%9D%98_%EB%8C%80%ED%95%99_%EC%9E%85%EC%8B%9C_%EC%A0%9C%EB%8F%84Please check if I did the assignment well.