Main page https://hack.plasmapy.org  has link pointing to 2021 'About' page instead of 2022

NOTE the 2021 link in the last sentence of the first paragraph of the hack.plasmapy.org page:

Hello world! We are pleased to announce the return of the Plasma Hack Week, which will be held remotely from July 11 – July 15, 2022. For additional information please check out the ``2022 About page](https://hack.plasmapy.org/2021/schedule``, and stay tuned as more details are released.