Update app.py

app.py

@@ -65,6 +65,20 @@ with st.sidebar:
     st.success("Example: What are some online links by Yiqiao I can read about?")
     st.success("Example: What is Yiqiao's view on stock market?")
 
+
+    # Add a button to clear the session state
+    if st.button("Clear Session"):
+        st.session_state.messages = []
+        st.experimental_rerun()
+
+    # Donation
+    stripe_payment_link = os.environ["STRIPE_PAYMENT_LINK"]
+    st.markdown(
+        f"""
+        Want to support me? 😄 Click here using this [link]({stripe_payment_link}).
+        """
+    )
+
     # Credit:
     current_year = current_year()  # This will print the current year
     st.markdown(
@@ -74,13 +88,6 @@ with st.sidebar:
         unsafe_allow_html=True,
     )
 
-
-    # Add a button to clear the session state
-    if st.button("Clear Session"):
-        st.session_state.messages = []
-        st.experimental_rerun()
-
-
 # Initialize chat history
 if "messages" not in st.session_state:
     st.session_state.messages = []