Revert "fixing readme typo"

This reverts commit 9563015.

revert back changes in readme

'revert back changes in readme'

q

Author: hengynzhang

README.md

@@ -13,4 +13,4 @@ Output
    simple interest = p*t*r
 ```
 
-_© 2023 XYZ, Inc._
+_© 2022 XYZ, Inc._