Start 2026 website and update docs

[MathewBiddle]

Need to update https://github.com/ioos/ioos-code-sprint/blob/main/CONTRIBUTING.md with instructions for creating a new website for another year.

[MathewBiddle]

November 3-5, 2026 in Corpus Christi, Texas, with the option for virtual participation for those who are unable to travel to be there in person.