ES country code missing in const.countries

[titocosta]

I noticed that const.countries array is missing code 'es', while the API does return news sources for Spain.

[mattlisiv]

@titocosta,

Based on the current documentation, Spain is not a valid country while 'es' is a valid language.

The 2-letter ISO 3166-1 code of the country you want to get headlines for.

Possible options: ae ar at au be bg br ca ch cn co cu cz de eg fr gb gr hk hu id ie il in it jp kr lt lv ma mx my ng nl no nz ph pl pt ro rs ru sa se sg si sk th tr tw ua us ve za .

Note: you can't mix this param with the sources param.