Update README.md

Author: wangzhzh

README.md

@@ -31,7 +31,7 @@ A/B Testing SDK 是一款用于 A/B 测试的 SDK。
 
 ## License
 
-Copyright 2015－2021 Sensors Data Inc.
+Copyright 2015－2024 Sensors Data Inc.
 
 Licensed under the Apache License, Version 2.0 (the "License");
 you may not use this file except in compliance with the License.