Update copyright date

fcollonval · web-flow · commit 0589de9ab048 · 2023-05-31T12:35:42.000+02:00
Fixes #47
diff --git a/LICENSE b/LICENSE
@@ -1,6 +1,6 @@
 BSD 3-Clause License
 
-Copyright (c) 2017, Project Jupyter Contributors
+Copyright (c) 2016, Project Jupyter Contributors
 All rights reserved.
 
 Redistribution and use in source and binary forms, with or without
