public IActionResult Index()
        {
            IEnumerable<SectionListingModel> sections = _sectionService.GetAll()
                .Select(section => new SectionListingModel
                {
                    Id = section.Id,
                    Title = section.Title,
                    Description = section.Description
                });

            var model = new SectionIndexModel
            {
                Sections = sections
            };
            return View(model);
        }