Update app.py

app.py

@@ -1,7 +1,7 @@
 import streamlit as st
 import re
 import pandas as pd
-from sklearn.feature_extraction.text import TfidfVectorizera
+from sklearn.feature_extraction.text import TfidfVectorizer
 from sklearn.naive_bayes import MultinomialNB
 import numpy as np
 from sklearn.model_selection import train_test_split