Incorrect copyright year in the footer of website

[Abinashbunty]

Hi team! Just spotted a small issue on the website and wanted to report it here. 😄

In the copyright section in footer, the year is wrong. Currently it is written as © Copyright 202, Executable Book Project. Anything like 2023 or 2022 etc would be fine. But a 3-digit year is not quite common.

[rowanc1]

Put together a PR to fix this here!
#1044

Thank you!