Add a web accessibility link

[kafitzgerald]

As @jukent pointed out over on NCAR/esds#267, we need to add a web accessibility link in the footer per institutional guidance by 2/1/24.

The way the recommendations read we should probably be doing this on our GeoCAT documentation pages as well. Those aren't on a UCAR domain though and don't have a footer at the moment. Thoughts?

[jukent]

I don't know if the package documentation pages need to? But the GeoCAT one should. The template has been updated, but it looks like we're using an older version of the template?

[kafitzgerald]

Interesting. Yeah, the template repo we're currently using is now archived.

I imagine we should probably update.

@erogluorhan, any thoughts?

[erogluorhan]

Interesting. Yeah, the template repo we're currently using is now archived.

I imagine we should probably update.

@erogluorhan, any thoughts?

I've created PR #68 for this (hoping it to be as easy as bumping the koru-jekyll theme to the latest version where they've added Accesibility link).

Regarding the GeoCAT docs websites, I agree with @jukent , they are not on UCAR or NSF NCAR domains, so I don't think we'd need to update them.