Added achievement data

app/Http/Controllers/NotificationController.php

@@ -0,0 +1,17 @@
+<?php
+
+namespace App\Http\Controllers;
+
+use App\Models\Notification;
+use Illuminate\Foundation\Auth\Access\AuthorizesRequests;
+use Illuminate\Http\Request;
+
+class NotificationController extends Controller
+{
+    use AuthorizesRequests;
+    public function markRead(Request $request, Notification $notification)
+    {
+        $this->authorize('update', $notification);
+        $notification->markAsRead();
+    }
+}