fix: Corrected copyright year

jceralde · jceralde · commit 6f35316ced4e · 2025-07-14T00:47:57.000+08:00
From 2022 to 2025
diff --git a/README.md b/README.md
@@ -9,8 +9,9 @@ Input:
    p, principal amount
    t, time period in years
    r, annual rate of interest
+
 Output
    simple interest = p*t*r
 ```
 
-_© 2022 XYZ, Inc._
+_© 2025 XYZ, Inc._
