fix: update copyright year

coderbyheart · coderbyheart · commit ec59c31be565 · 2020-02-03T14:00:29.000+01:00
diff --git a/LICENSE b/LICENSE
@@ -1,6 +1,6 @@
 BSD 3-Clause License
 
-Copyright (c) 2019, Nordic Semiconductor ASA | nordicsemi.no
+Copyright (c) 2019-2020, Nordic Semiconductor ASA | nordicsemi.no
 All rights reserved.
 
 Redistribution and use in source and binary forms, with or without
