Fully specify language(s) used in site #234
Description
part of a series of accessibility improvements//maintenance taeyoon asked me to work on, I'm going to sort through and make PR's for these where possible
Per
https://www.w3.org/WAI/standards-guidelines/act/rules/html-page-lang-b5c3f8/, we should specify what language we use in site pages for screen readers, translation apps, seo.
I think it is just a short change here:
sfpc.github.io/_layouts/default.html
Line 2 in 0b33442