send email to notify customer about china bankslip and instruction to upload po

app/Http/Controllers/ChinaBankSlipController.php

@@ -4,10 +4,12 @@ namespace App\Http\Controllers;
 
 use App\ChinaBankSlip;
 use App\Booking;
+use App\Notifications\UploadPo;
 use App\User;
 use Illuminate\Http\Request;
 use Illuminate\Support\Facades\Storage;
 use Validator;
+use Illuminate\Support\Facades\Notification;
 
 class ChinaBankSlipController extends Controller
 {
@@ -81,6 +83,8 @@ class ChinaBankSlipController extends Controller
 		$booking->admin_status = 6; 
 		$booking->save();
 
+        Notification::send([$booking->user], new UploadPo($booking));
+
         return response()->json(["message"=> "Success"],200);
     }