Updated copyright year in README.md

README.md

@@ -92,7 +92,7 @@ to guided you through my understanding of how it works.
 [MIT]: https://opensource.org/licenses/MIT
 
 <hr>
-Copyright &copy; 2022-2023, Michael Cummings<br/>
+Copyright &copy; 2023, Michael Cummings<br/>
 <a rel="license" href="http://creativecommons.org/licenses/by-sa/4.0/">
 <img alt="Creative Commons License" style="border-width:0" src="https://i.creativecommons.org/l/by-sa/4.0/88x31.png" />
 </a>