Update app.py

app.py

@@ -12,7 +12,7 @@ users = {
 def index():
     return render_template('index.html')
 
-@app.route('/login', methods=['POST'])
+@app.route('/index', methods=['POST'])
 def login():
     username = request.form.get('username')
     password = request.form.get('password')