public async Task <IActionResult> DeleteSectionLecture(int crsId, int lectId)
        {
            IEnumerable <Lecture> sectionLecture = await _db.DeleteSectionLecture(crsId, lectId);

            if (sectionLecture != null)
            {
                return(Ok(sectionLecture));
            }
            return(BadRequest("Someting went wrong"));
        }