[fix] make minor change to pictureFormat.md
[fix] make minor change to pictureFormat.md

ibari/zibzoo,altroncwd/zibzoo,ahmedmodan/zibzoo,ahmedmodan/zibzoo,unforgitables/zibzoo,altroncwd/zibzoo,unforgitables/zibzoo,ibari/zibzoo