Update README.md

likejazz · web-flow · commit d48ac6c722dc · 2020-09-14T23:52:31.000+09:00
diff --git a/README.md b/README.md
@@ -13,7 +13,7 @@
 ★ 정오표: https://www.onlybook.co.kr/entry/algorithm-interview-errata  
 ★ 도서정보: https://www.onlybook.co.kr/entry/algorithm-interview
 
-[![](https://img.youtube.com/vi/fNyGHpSWhTA/0.jpg)](https://www.youtube.com/watch?v=fNyGHpSWhTA)
+★ YouTube: https://www.youtube.com/watch?v=fNyGHpSWhTA
 
 ![마인드맵](https://user-images.githubusercontent.com/1250095/86745916-a62e9a00-c075-11ea-9aa5-8455e2527f87.png)
 
