Nigeria’s food delivery start-ups are attracting attention from international investors optimistic about the growing demand in Africa’s most populous nation for restaurant fare at home even as soaring food inflation bites.Homegrown industry leaders Chowdeck, FoodCourt and Heyfood, each backed by start-up incubator Y Combinator, as well as Spain’s Glovo, are jostling to grab market share and cater to a population whose average family spends about 60 per cent of their income on food. The market in...