auto update README.md

Author: chech2

README.md

@@ -330,6 +330,7 @@
 |11279. 최대 힙|[링크](./%EB%B0%B1%EC%A4%80/Silver/11279.%E2%80%85%EC%B5%9C%EB%8C%80%E2%80%85%ED%9E%99/%EC%B5%9C%EB%8C%80%E2%80%85%ED%9E%99.java)|
 |11286. 절댓값 힙|[링크](./%EB%B0%B1%EC%A4%80/Silver/11286.%E2%80%85%EC%A0%88%EB%8C%93%EA%B0%92%E2%80%85%ED%9E%99/%EC%A0%88%EB%8C%93%EA%B0%92%E2%80%85%ED%9E%99.java)|
 |11403. 경로 찾기|[링크](./%EB%B0%B1%EC%A4%80/Silver/11403.%E2%80%85%EA%B2%BD%EB%A1%9C%E2%80%85%EC%B0%BE%EA%B8%B0/README.md)|
+|11478. 서로 다른 부분 문자열의 개수|[링크](./%EB%B0%B1%EC%A4%80/Silver/11478.%E2%80%85%EC%84%9C%EB%A1%9C%E2%80%85%EB%8B%A4%EB%A5%B8%E2%80%85%EB%B6%80%EB%B6%84%E2%80%85%EB%AC%B8%EC%9E%90%EC%97%B4%EC%9D%98%E2%80%85%EA%B0%9C%EC%88%98/README.md)|
 |1149. RGB거리|[링크](./%EB%B0%B1%EC%A4%80/Silver/1149.%E2%80%85RGB%EA%B1%B0%EB%A6%AC/README.md)|
 |1158. 요세푸스 문제|[링크](./%EB%B0%B1%EC%A4%80/Silver/1158.%E2%80%85%EC%9A%94%EC%84%B8%ED%91%B8%EC%8A%A4%E2%80%85%EB%AC%B8%EC%A0%9C/%EC%9A%94%EC%84%B8%ED%91%B8%EC%8A%A4%E2%80%85%EB%AC%B8%EC%A0%9C.java)|
 |11659. 구간 합 구하기 4|[링크](./%EB%B0%B1%EC%A4%80/Silver/11659.%E2%80%85%EA%B5%AC%EA%B0%84%E2%80%85%ED%95%A9%E2%80%85%EA%B5%AC%ED%95%98%EA%B8%B0%E2%80%854/README.md)|