src/MarkdownServiceProvider.php
protected function registerMarkdown()
    {
        $app = $this->app;

        $app->singleton('markdown', function ($app) {
            return new Converter($app['commonmark.docparser'], $app['commonmark.htmlrenderer']);
        });

        $app->alias('markdown', Converter::class);
    }
protected function registerMarkdown()
    {
        $app = $this->app;

        $app->singleton('markdown', function ($app) {
            return new Converter($app['commonmark.docparser'], $app['commonmark.htmlrenderer']);
        });

        $app->alias('markdown', Converter::class);
    }
Register the CommonMarkConverter.

@return void