Update app.py

app.py

@@ -17,11 +17,11 @@ def main():
             with col2:
                 st.write(file_name)
             with col3:
-                send_button = st.button("Send email for {file_name}")
+                send_button = st.button(f"Send email for {file_name}")
 
                 if send_button:
                     email_summary(file_name)
-                    st.success("Sent email for {file_name}")
+                    st.success(f"Sent email for {file_name}")
 
 if __name__ == '__main__':
     main()