Update README.md

Author: learntosurf

_WeeklyChallenges/W05-[Greedy]/README.md

@@ -12,4 +12,4 @@
 
 ### 💻 과제
 - [백준 #1931. 회의실 배정](https://www.acmicpc.net/problem/1931): 그리디, 정렬 / 골드5
-- 정답 코드: [Assignment_BOJ_1931_회의실배정.py](./Assignment_BOJ_1931_회의실배정.py)
+- 정답 코드: [Assignment_BOJ_1931_회의실배정.py](./Assignment_BOJ_1931_회의실배정.py)