Changed a year from 2022 to 2023 in Readme file

Author: domyn84

README.md

@@ -7,10 +7,10 @@ A calculator that calculates simple interest given principal, annual rate of int
 ```
 Input:
    p, principal amount
-   t, time period in years
+   t, time period in years 
    r, annual rate of interest
 Output
    simple interest = p*t*r
 ```
 
-_© 2022 XYZ, Inc._
+_© 2023 XYZ, Inc._