Composer basic start point strcuture

composer.json

{
    "name": "vendor-name/project-name",
    "authors": [
        {
            "name": "Xavier Lacot",
            "email": "xlacot@jolicode.com",
            "homepage": "http://www.lacot.org",
            "role": "Developer"
        }
    ],
    "require": {
        "monolog/monolog": "1.0.*",
        "joli/ternel": "@dev"
    },
    "autoload": {
        "psr-4": {
            "Monolog\\": "src/",
        }
    }
}