update copyright year (#48)

DocX · web-flow · commit d03328a9c032 · 2020-05-04T13:28:17.000+02:00
diff --git a/LICENSE b/LICENSE
@@ -186,7 +186,7 @@
       same "printed page" as the copyright notice for easier
       identification within third-party archives.
 
-   Copyright 2020 Zendesk
+   Copyright 2015 Zendesk
 
    Licensed under the Apache License, Version 2.0 (the "License");
    you may not use this file except in compliance with the License.
diff --git a/README.md b/README.md
@@ -490,6 +490,6 @@ Report [here](https://github.com/basecrm/basecrm-php/issues).
 
 ## Copyright and license
 
-Copyright 2020 Zendesk
+Copyright 2015 Zendesk
 
 Licensed under the [Apache License, Version 2.0](LICENSE)
