Update app.py

app.py

@@ -109,6 +109,7 @@ def main():
     st.sidebar.markdown("<hr style='border: 1px solid gray; margin: 15px 0;'>", unsafe_allow_html=True)
     st.sidebar.write("### Key Links")
     st.sidebar.write("- [Leaderboard](https://huggingface.co/spaces/AIEnergyScore/Leaderboard)")
+    st.sidebar.write("- [Submission Portal](https://huggingface.co/spaces/AIEnergyScore/submission_portal)")    
     st.sidebar.write("- [FAQ](https://huggingface.github.io/AIEnergyScore/#faq)")
     st.sidebar.write("- [Documentation](https://huggingface.github.io/AIEnergyScore/#documentation)")