[REQUEST] Add infrastructure for translated content

[juliaferraioli]

Is your feature request related to a problem? Please describe.
Should we have people willing to translate our transcripts, we should have the infrastructure set up to publish them.

Describe the solution you'd like
You can see an example of how this might work with the theme we use here: https://github.com/theNewDynamic/gohugo-theme-ananke/tree/master/exampleSite

More generic information about multilingual content is available in the Hugo documentation: https://gohugo.io/content-management/multilingual/