Add Paper2Video project to README (#3286)

Co-authored-by: Wendong-Fan <133094783+Wendong-Fan@users.noreply.github.com>

Author: QinghongLin

README.md

@@ -517,6 +517,7 @@ Real-world usecases demonstrating how CAMEL’s multi-agent framework enables re
 |:---|:---|
 | **[ChatDev](https://github.com/OpenBMB/ChatDev/tree/main/camel)** | Communicative Agents for software Development |
 | **[Paper2Poster](https://github.com/Paper2Poster/Paper2Poster)** | Multimodal poster automation from scientific papers |
+| **[Paper2Video](https://github.com/showlab/Paper2Video)** | Automatic video generation from scientific papers |
 
 ### Product Projects