Update app.py

app.py

@@ -42,8 +42,8 @@ if (!window.hasBeenRun) {
 def get_database_session(url):
   # Create a database session object that points to the URL.
   return session
-Clear memo
-Clear all in-memory and on-disk memo caches.
+#Clear memo
+#Clear all in-memory and on-disk memo caches.
 
 @st.experimental_memo
 def fetch_and_clean_data(url):