How can I help? 
Glad your asking! We can always use some more country info in this package. Copy the _template.json file in the src/LangCountryData directory and fill in the blanks. You can then make a PR. Some good resources:
- http://www.localeplanet.com/icu/index.html
 - https://gist.github.com/mlconnor/1887156
 - http://www.lingoes.net/en/translator/langcode.htm
 - https://emojipedia.org/flags/
 - https://github.com/mledoze/countries
 
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