Update the copyright (pytorch#2222)

Svetlana Karslioglu · clee2000 · commit 6580edd44535 · 2023-02-28T13:36:24.000-08:00
diff --git a/conf.py b/conf.py
@@ -133,7 +133,7 @@
 
 # General information about the project.
 project = 'PyTorch Tutorials'
-copyright = '2022, PyTorch'
+copyright = '2023, PyTorch'
 author = 'PyTorch contributors'
 
 # The version info for the project you're documenting, acts as replacement for
