Add the reference to the article in example

README.md

@@ -20,4 +20,4 @@ python3 ttc2ttf.py SourceHanSans.ttc
 * [wordcloud](https://github.com/amueller/word_cloud)
 * [jieba](https://github.com/fxsjy/jieba)
 
-And, special thanks to Lao She who authors `example.in`.
+And, special thanks to Lao She who authors `example.in` (*Mr. Breeches*, 1933).