Remove copyright

[aj-stein]

I had accidentally left a copyright notice in front the site template, but this site and related code is released by SCE Cloud into the public domain. Need to remove this in a little bit.

scecloud.github.io/docusaurus.config.ts

Line 121 in dc7afea

copyright: `Copyright © ${new Date().getFullYear()} Super Cool Example Cloud Volunteers built this with Docusaurus.`,