Update app.py

app.py

@@ -183,7 +183,7 @@ def main():
                 show_download_links(subdir)
 
         # Expander for showing URL history and download links
-        with st.expander("URL History and Downloaded Files
+        with st.expander("URL History and Downloaded Files"):
             try:
                 for url, subdir in history.items():
                     st.markdown(f"#### {url}")