diff --git a/docs/superpowers/specs/2026-05-13-contribution-realtime-display-design.md b/docs/superpowers/specs/2026-05-13-contribution-realtime-display-design.md
index a5bf53c..5c7872a 100644
--- a/docs/superpowers/specs/2026-05-13-contribution-realtime-display-design.md
+++ b/docs/superpowers/specs/2026-05-13-contribution-realtime-display-design.md
@@ -953,4 +953,4 @@ lock: activity:{activityId}:contributions:lock
 
 1. **多级缓存**：引入本地内存缓存（如 Go 的 `sync.Map`），减少 Redis 请求
 2. **窗口动态调整**：根据并发量动态调整窗口大小
-3. **监控告警**：监控缓存命中率、锁等待时间、DB 查询 QPS
\ No newline at end of file
+3. **监控告警**：监控缓存命中率、锁等待时间、DB 查询 QPS