chore: update demo

iamkun · iamkun · commit 1547bffb048e · 2025-08-20T12:47:53.000+08:00
diff --git a/docs/demo/index.js b/docs/demo/index.js
@@ -46,3 +46,6 @@ dayjs().startOf('year').format()
 
 // endOf
 dayjs().endOf('year').format()
+
+// week
+dayjs().week()
