monitor-doc/app/Mail/DocumentNotification.php

<?php

namespace App\Mail;

use App\Models\Document;
use Illuminate\Bus\Queueable;
use Illuminate\Contracts\Queue\ShouldQueue;
use Illuminate\Mail\Mailable;
use Illuminate\Queue\SerializesModels;

class DocumentNotification extends Mailable
{
    use Queueable, SerializesModels;

    /**
     * Create a new message instance.
     *
     * @return void
     */
    public function __construct(
        public Document $doc
    ) {
    }

    /**
     * Build the message.
     *
     * @return $this
     */
    public function build()
    {
        return $this->markdown('emails.document.notification', [
            'doc' => $this->doc->load(['type']),
            'url' => route('docs.show', $this->doc->id)
        ]);
    }
}