How to install the default language servers

[language-server.phpactor] command = "phpactor" args = ["language-server"]

language name = "php" scope = "source.php" injection-regex = "php" file-types = ["php", "inc", "php4", "php5", "phtml", "ctp"] shebangs = ["php"] roots = ["composer.json", "index.php"] comment-token = "//" language-servers = [ "phpactor" ] indent = { tab-width = 4, unit = " " }