Update app.py

app.py

@@ -163,4 +163,4 @@ else:
 with st.sidebar:
     st.markdown("---")
     st.markdown("### Reference")
-    st.markdown("[SQL Agents w CrewAI and Llama 3 -Plaban Nayak](https://github.com/plaban1981/Agents/blob/main/SQL_Agents_with_CrewAI_and_Llama_3.ipynb)")
+    st.markdown("[1. SQL Agents w CrewAI & Llama 3 - Plaban Nayak](https://github.com/plaban1981/Agents/blob/main/SQL_Agents_with_CrewAI_and_Llama_3.ipynb)")