Update app.py

question to query

app.py

@@ -75,9 +75,9 @@ def ask_question(query):
 if query:
     with st.spinner("👑    Performing semantic search on abstracts..."):
         try:
-            msg = 'Asked ' + question
+            msg = 'Asked ' + query
             logging.info(msg)
-            st.session_state.results = ask_question(question)    
+            st.session_state.results = ask_question(query)    
         except Exception as e:
             logging.exception(e)