Update README.md

Author: wh2per

README.md

@@ -115,7 +115,7 @@
 | [피로도](https://programmers.co.kr/learn/courses/30/lessons/87946) | [cpp](Programmers/Lv2/Lv2_피로도.cpp)|
 | [2개 이하로 다른 비트](https://programmers.co.kr/learn/courses/30/lessons/77885) | [cpp](Programmers/Lv2/Lv2_2개이하로다른비트기.cpp)|
 | [삼각 달팽이](https://programmers.co.kr/learn/courses/30/lessons/68645) | [cpp](Programmers/Lv2/Lv2_삼각달팽이.cpp)|
-| 교점에 별 만들기](https://programmers.co.kr/learn/courses/30/lessons/87377) | [cpp](Programmers/Lv2/Lv2_교점에별만들기.cpp)|
+| [교점에 별 만들기](https://programmers.co.kr/learn/courses/30/lessons/87377) | [cpp](Programmers/Lv2/Lv2_교점에별만들기.cpp)|
 | [전력망을 둘로 나누기](https://programmers.co.kr/learn/courses/30/lessons/86971) | [cpp](Programmers/Lv2/Lv2_전력망을둘로나누기.cpp)|
 
 ## Lv3