Update app.py

app.py

@@ -439,8 +439,8 @@ def get_level(word):
 def vocab_level_inter(text):
   text = word_tokenize(text)
   stop_words = set(stopwords.words('english'))
-    for i in string.punctuation:
-        stop_words.add(i)
+  for i in string.punctuation:
+    stop_words.add(i)
   interp = [('',0)]
   sum = 0
   total = 0