docs(README): update demo video from better model

upload a `deflow_best` pre-train model by setting different hyperparameters on the learning rate (2e-4).

Author: Kin-Zhang

README.md

@@ -3,11 +3,9 @@ DeFlow: Decoder of Scene Flow Network in Autonomous Driving
 
 [![arXiv](https://img.shields.io/badge/arXiv-2401.16122-b31b1b?logo=arxiv&logoColor=white)](https://arxiv.org/abs/2401.16122) 
 [![PWC](https://img.shields.io/endpoint.svg?url=https://paperswithcode.com/badge/deflow-decoder-of-scene-flow-network-in/scene-flow-estimation-on-argoverse-2)](https://paperswithcode.com/sota/scene-flow-estimation-on-argoverse-2?p=deflow-decoder-of-scene-flow-network-in) 
-[![poster](https://img.shields.io/badge/Poster-6495ed?style=flat&logo=Shotcut&logoColor=wihte)](https://hkustconnect-my.sharepoint.com/:b:/g/personal/qzhangcb_connect_ust_hk/EXP_uXYmm_tItTWc8MafXHoB-1dVrMnvF1-lCzU1PXAvqQ?e=2FPfBS) 
+[![poster](https://img.shields.io/badge/ICRA24|Poster-6495ed?style=flat&logo=Shotcut&logoColor=wihte)](https://hkustconnect-my.sharepoint.com/:b:/g/personal/qzhangcb_connect_ust_hk/EXP_uXYmm_tItTWc8MafXHoB-1dVrMnvF1-lCzU1PXAvqQ?e=2FPfBS) 
 [![video](https://img.shields.io/badge/video-YouTube-FF0000?logo=youtube&logoColor=white)](https://youtu.be/bZ4uUv0nDa0)
 
-Will present in ICRA'24.
-
 Task: Scene Flow Estimation in Autonomous Driving. 
 Pre-trained weights for models are available in [Onedrive link](https://hkustconnect-my.sharepoint.com/:f:/g/personal/qzhangcb_connect_ust_hk/Et85xv7IGMRKgqrVeJEVkMoB_vxlcXk6OZUyiPjd4AArIg?e=lqRGhx). 
 Check usage in [2. Evaluation](#2-evaluation) or [3. Visualization](#3-visualization). 
@@ -129,7 +127,10 @@ Note: ego_motion already compensated, so the visualization is more clear.
 
 <!-- ![](assets/docs/vis_res.png) -->
 
-https://github.com/KTH-RPL/DeFlow/assets/35365764/15581af1-3066-4865-bf72-1242a478b938
+
+https://github.com/KTH-RPL/DeFlow/assets/35365764/9b265d56-06a9-4300-899c-96047a0da505
+
+
 
 ## Cite & Acknowledgements