Update src/streamlit_app.py

src/streamlit_app.py

@@ -736,7 +736,7 @@ st.set_page_config(layout="wide", page_title="LLEP Simulator & Visualizer")
 st.title("Least-Loaded Expert Parallelism (LLEP)")
 st.markdown("""Compare **Standard EP** against the **LLEP (LLA/LLAS)** plan and visualize step-by-step spilling.
 
-[![Paper](https://img.shields.io/badge/Paper-arXiv-B31B1B?style=for-the-badge&logo=arxiv&logoColor=white)](https://arxiv.org/abs/placeholder)
+[![Paper](https://img.shields.io/badge/Paper-arXiv-B31B1B?style=for-the-badge&logo=arxiv&logoColor=white)](https://www.arxiv.org/abs/2601.17111)
 [![PDF](https://img.shields.io/badge/PDF-brightgreen?style=for-the-badge&logoColor=white)](https://github.com/SalesforceAIResearch/LeastLoadedEP/blob/main/llep_paper.pdf)
 [![GitHub](https://img.shields.io/badge/github-SalesforceAIResearch%2FLeastLoadedEP-blue?logo=github&style=for-the-badge)](https://github.com/SalesforceAIResearch/LeastLoadedEP)
 """, unsafe_allow_html=True)