Update app.py

app.py

@@ -190,7 +190,7 @@ with st.expander("See extra options"):
     if st.button("Refresh topics!"):
         article_dict, clusters = initialize(LIMIT, USE_CACHE)      
     st.write("Select chunk size--  \nSmaller chunks means more of the article included in the summary and a longer digest.")
-    chunk_size = col2.select_slider(label="Slider", options=[i for i in range(50,801,50)], value=400)
+    chunk_size = st.select_slider(label="Slider", options=[i for i in range(50,801,50)], value=400)
     
 selections = []
 choices = list(clusters.keys())