Add copyright with years

Author: kelvinqian00

README.md

@@ -463,6 +463,8 @@ SSH in to a cluster node:
 
 ## License
 
+Copyright © 2019-2025 Yet Analytics, Inc.
+
 DATASIM is licensed under the Apache License, Version 2.0. See [LICENSE](LICENSE) for the full license text
 
 THE DATASIM SOFTWARE (“SOFTWARE”) IS PUBLISHED AS OPEN SOURCE SOFTWARE TO ENABLE USERS TO TEST CERTAIN CAPABILITIES OF THEIR SYSTEMS INCLUDING THE LEVEL OR CAPACITY OF xAPI DATA THAT CAN BE HANDLED BY A USER’S SYSTEM. THE SOFTWARE IS EXPRESSLY INTENDED TO TEST CAPACITY AND SYSTEM LIMITS AND CAN CAUSE SYSTEM OUTAGES WHEN A SYSTEM’S CAPACITY IS EXCEEDED. IT MUST BE USED WITH CAUTION.