Update license to 2021

README.md

diff --git a/README.md b/README.md
index bed5c2b..c79a8ea 100644
--- a/README.md
+++ b/README.md
@@ -28,7 +28,7 @@
 can be found in the [`LICENSE`](LICENSE) file.
 
 ```
-Copyright 2020  Board of Regents for the Oklahoma Agricultural and Mechanical Colleges
+Copyright 2021 Board of Regents for the Oklahoma Agricultural and Mechanical Colleges
 
 Licensed under the Apache License, Version 2.0 (the "License");
 you may not use this file except in compliance with the License.