Update app.py

app.py

@@ -69,7 +69,7 @@ def preprocess_text(text):
     replace_by = " " 
     replacement_map = {
         ord(c): replace_by
-        for c in ':#{|}' + string.digits
+        for c in ':•#{|}' + string.digits
     }
     text = text.translate(replacement_map)