Update app.py

app.py

@@ -180,3 +180,6 @@ if st.session_state.df is not None:
 else:
     st.info("Please load a dataset to proceed.")
 
+with st.sidebar:
+    st.header("📚 Reference:")
+    st.markdown("[SQL Agents w CrewAI & Llama 3 - Plaban Nayak](https://github.com/plaban1981/Agents/blob/main/SQL_Agents_with_CrewAI_and_Llama_3.ipynb)")