chore: update demo

iamkun · iamkun · commit 45bf6a3e55cb · 2025-11-20T14:11:18.000+08:00
diff --git a/docs/demo/index.js b/docs/demo/index.js
@@ -49,3 +49,6 @@ dayjs().endOf('year').format()
 
 // week
 dayjs().week()
+
+// weekday
+dayjs().weekday()
