(1) In order to make a will by holograph document, the testator must write with his or her own handwriting the whole text, the date, the domicile and his or her full name, and must affix his or her seal thereto.
(2) In order to make any insertion, deletion or other alteration of letters in a holograph mentioned in paragraph (1), such correction must be made in the testator's own handwriting and affix his or her seal thereto.