Define requirements for language being published #74
Description
Not all languages listed in Sphinx's documentation Transifex project are pulled, stored and published. locales/update.sh pulls selected languages.
For a list of languages and per-language total translation percentage, see https://app.transifex.com/sphinx-doc/sphinx-doc/.
For build status for each language, see https://github.com/sphinx-doc/sphinx-doc-translations/actions/workflows/test-translations.yml.
What is the minimum requirements to enable languages?