Please add the language code TLI to the list of language codes supported for monolingual text values.

Usage example: Tlingit

Script Used: Latin

Usage: Spoken by ~1300 people in Alaska and Canada, representing over 10,000 living members of the Tlingit people and Tlingit culture items.

Wikidata Item: https://www.wikidata.org/wiki/Q27792
Wikipedia: https://en.wikipedia.org/wiki/Tlingit_language

Please let me know if I can provide you with more information. This is my first language code submission.

Thanks!