remove hardcoded licenseYear in docs (#10158)

diff --git a/docs/index.md b/docs/index.md
index 48f1eb5d88396622fc2b60deb4aaf607edbd1ef2..741b13640739edd973a80627441799d3b872f2a1 100644 (file)
--- a/docs/index.md
+++ b/docs/index.md
@@ -65,4 +65,4 @@ For support using Chart.js, please post questions with the [`chartjs` tag on Sta
 
 Chart.js is available under the [MIT license](https://github.com/chartjs/Chart.js/blob/master/LICENSE.md).
 
-Documentation is copyright © 2014-2022 Chart.js contributors.
+Documentation is copyright © 2014-{{new Date().getFullYear()}} Chart.js contributors.