Put this in your composer.json

{
    "require": {
        "athenaspa/easycountry": "dev-master"
    },
    "repositories": [{
        "type": "git",
        "url": "https://github.com/athenaspa/easycountry.git"
    }],
    "config": {
        "vendor-dir": "vendors"
    }
}