Update app.py

app.py

@@ -64,7 +64,7 @@ description = "## Introduction 🔥🔥🔥\n" \
               "## Preprint Paper 📝 \n" \
               "The paper is available at [arXiv](https://arxiv.org/abs/2305.09156) \n" \
               "## Video Presentation 📹 \n" \
-              "The video presentation is available at [Video Record](https://recorder-v3.slideslive.com/?share=85662&s=6afe157c-e764-4e3c-9302-2c6dd6887db1/). \n" \
+              "The video presentation is available at [Video Record](https://recorder-v3.slideslive.com/?share=85662&s=6afe157c-e764-4e3c-9302-2c6dd6887db1). \n" \
               "## Conference Website \n" \
               "The project is presented at [NeurIPS 2023](https://neurips.cc/virtual/2023/poster/70202). \n" \
               "## Below is the interactive demo of our model.  You can select the videos examples below or upload your own videos.  The model outputs the motion flow field, the activation of the first stage, and the attention map of the second stage." \