fix: update copyright year in README

pakmatthew · pakmatthew · commit 5d246bb14694 · 2025-09-03T01:11:42.000-04:00
diff --git a/README.md b/README.md
@@ -13,4 +13,4 @@ Output
    simple interest = p*t*r
 ```
 
-_© 2022 XYZ, Inc._
+_© 2023 XYZ, Inc._
