`Cldr.LanguageTag.parse` expects binary

[Benjamin Milde]

Cldr.LanguageTag.parse expects binary, but the documentation says it accepts items returned from Cldr.known_locale_names, which seems to return a list of atoms with 2.26.

[Kip Cole]

Thanks @LostKobrakai for the report, much appreciated. Fixed and published a new version of the docs.