docs: align model card with Echo 1.5 release

README.md

@@ -114,7 +114,7 @@ cd JoyAI-Echo/echo_longvideo
 ### 3. Run batch inference
 
 ```bash
-python inference.py --config configs/inference.yaml       # BF16
+python inference.py --config configs/inference.bf16.yaml  # BF16
 python inference.py --config configs/inference.fp8.yaml   # FP8
 python inference.py --config configs/inference.fp4.yaml   # FP4
 ```
@@ -141,14 +141,15 @@ possible, especially [LTX-2.3](https://huggingface.co/Lightricks/LTX-2.3),
 ## Citation
 
 ```bibtex
-@misc{duan2026longhorizonaudiovisualgenerationpersistent,
-  title={Long-Horizon Audio-Visual Generation for Persistent Stories and Interactive Worlds},
-  author={Nan Duan and Haoyang Huang and Weiyang Jin and Haoran Li and Yaowei Li and Yuming Li and Yijun Liu and Xin Lu and Xiaoxiao Ma and Yanwen Ma and Yaofeng Su and Yilang Sun and Haoyu Wang and Zeyue Xue and Songchun Zhang and Junhao Zhuang},
-  year={2026},
-  eprint={2608.23383},
-  archivePrefix={arXiv},
-  primaryClass={cs.CV},
-  url={https://arxiv.org/abs/2608.23383}
+@article{duan2026joyaiecho15,
+  title         = {Long-Horizon Audio-Visual Generation for Persistent Stories and Interactive Worlds},
+  author        = {Duan, Nan and Huang, Haoyang and Jin, Weiyang and Li, Haoran and Li, Yaowei and Li, Yuming and Liu, Yijun and Lu, Xin and Ma, Xiaoxiao and Ma, Yanwen and Su, Yaofeng and Sun, Yilang and Wang, Haoyu and Xue, Zeyue and Zhang, Songchun and Zhuang, Junhao},
+  journal       = {arXiv preprint arXiv:2608.23383},
+  year          = {2026},
+  eprint        = {2608.23383},
+  archivePrefix = {arXiv},
+  primaryClass  = {cs.CV},
+  url           = {https://arxiv.org/abs/2608.23383}
 }
 ```
 
@@ -156,11 +157,6 @@ possible, especially [LTX-2.3](https://huggingface.co/Lightricks/LTX-2.3),
 
 This project is based on LTX-2 by Lightricks Ltd.
 
-Portions of the original LTX-2 codebase have been modified by JD.com for
-academic and research purposes only. This project is not intended for
-commercial use. For commercial use of LTX-2 or its derivatives, please contact
-Lightricks Ltd.
-
 All original copyright, license, patent, trademark, and attribution notices
 from LTX-2 are retained. This project remains subject to the LTX-2 Community
 License Agreement.