Minor fix

app.py

@@ -7,7 +7,7 @@ tokenizer.load('models/english_5000.model')
 
 def inference(input_text):
     encoding = tokenizer.encode_ordinary(input_text)
-    sentence = [tokenizer.decode(x) for x in encoding]
+    sentence = [tokenizer.decode([x]) for x in encoding]
     return len(encoding), sentence, encoding
 
 title = "Bilingual tokenizer"