Update README files to include demo video links and enhance content presentation, along with adding a new demo video image.

README-EN.md

@@ -26,11 +26,15 @@ MiroFish is dedicated to creating a swarm intelligence mirror that maps reality.
 
 From serious predictions to playful simulations, we let every "what if" see its outcome, making it possible to predict anything.
 
-## 🎬 Demo Videos - Coming Soon
+## 🎬 Demo Videos
 
-1. Complete demo video for prediction based on BettaFish-generated public opinion report
-2. Complete demo video for "Dream of the Red Chamber" ending prediction
-3. Complete demo video for financial prediction
+<div align="center">
+<a href="https://www.bilibili.com/"><img src="./static/image/武大模拟演示封面.png" alt="MiroFish Demo Video" width="75%"/></a>
+
+Complete demo video for prediction using BettaFish-generated "Wuhan University Public Opinion Report"
+</div>
+
+> More demo videos coming soon: "Dream of the Red Chamber" ending simulation, financial prediction examples...
 
 ## 🔄 Workflow
 

README.md

@@ -26,11 +26,16 @@ MiroFish 致力于打造映射现实的群体智能镜像，通过捕捉个体
 
 从严肃预测到趣味仿真，我们让每一个如果都能看见结果，让预测万物成为可能。
 
-## 🎬 演示视频-待上传
+## 🎬 演示视频
 
-1. 针对微舆BettaFish生成的武大舆情报告进行预测的完整演示视频
-2. 红楼梦结局预测完整演示视频
-3. 金融方向的预测完整演示视频
+
+<div align="center">
+<a href="https://www.bilibili.com/"><img src="./static/image/武大模拟演示封面.png" alt="MiroFish Demo Video" width="75%"/></a>
+
+使用微舆BettaFish生成的《武大舆情报告》进行预测的完整演示视频
+</div>
+
+> 红楼梦结局模拟推演演示视频、金融方向预测示例演示视频等陆续更新中...
 
 ## 🔄 工作流程