modify tag

Author: yokoyama-midori

_posts/2024-12-21-abc294-ex.md

@@ -2,7 +2,7 @@
 title: ABC294-Ex 包除原理
 date: 2025-1-04 13:09:00 0900
 categories: [競技プログラミング]
-tags: [AtCoder,ABC]     # TAG names should always be lowercase
+tags: [AtCoder,ABC,包除原理]     # TAG names should always be lowercase
 math : true
 ---
 <!-- Block math, keep all blank lines -->