Update app.py

app.py

@@ -41,4 +41,5 @@ if ims is not None:
     cols = st.columns(n_btfs)
     for j, im in enumerate(ims):
         i = j % n_btfs
-        cols[i].image(im, use_column_width=True)
+        cols[i].image(im, use_column_width=True)
+