Fix format

Author: svekars

beginner_source/blitz/autograd_tutorial.rst

@@ -1,5 +1,3 @@
-# -*- coding: utf-8 -*-
-"""
 :orphan:
 
 A Gentle Introduction to ``torch.autograd``
@@ -12,4 +10,3 @@ Redirecting in 3 seconds...
 .. raw:: html
 
    <meta http-equiv="Refresh" content="3; url='https://pytorch.org/tutorials/beginner/basics/autogradqs_tutorial.html'" />
-"""