Added IBOutlet, chosenDocument and file names
Added IBOutlet, chosenDocument and file names

hanhailong/practice-swift,domenicosolazzo/practice-swift,hanhailong/practice-swift,nguyenantinhbk77/practice-swift,nguyenantinhbk77/practice-swift,domenicosolazzo/practice-swift,nguyenantinhbk77/practice-swift,domenicosolazzo/practice-swift,nguyenantinhbk77/practice-swift,hanhailong/practice-swift,domenicosolazzo/practice-swift,hanhailong/practice-swift