Revert "Fix footer year from 2022 to 2023 in README.md"

This reverts commit d451eaf.

Author: Akash

.github/ISSUE_TEMPLATE/close_pr.yml

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