New locale for CHTI

Hello there, we would like to start a localeLocale Locale = language version, often a combination of a language code and a region code, for instance es_MX denotes Spanish as it’s used in Mexico. A list of all locales supported by WordPress in for “CHTI” (french slang from North of France) similar to what the pirate locale is. Like the pirate locale, there isn’t really much info but I have supplied what I know 🙂

Locale: fr_CHTI
Country code: fr
Plural forms: nplurals=2; plural=(n > 1); (same as french)
Language native name: Ch’ti
Language English name: Chti
Sub-domain: ?
Site Title: Ch’ti
Site Description: WordPress in ch’ti ichi !
Admin Username(s): @juliobox
Admin Email address: (REDACTED)

Am I right with “locale” and “country code
Thank you 🙂