https://www.sutenm.com/%e0%b9%81%e0%b8%81%e0%b9%89%e0%b9%84%e0%b8%82%e0%b9%83%e0%b8%ab%e0%b9%89-wordpress-upload-file/
แก้ไขให้ Wordpress Upload Files Size ได้มากกว่า 2 MB