message: Only scan memory_type_count memory types in examples
  The example code originally checked all 32 memory types even if the
  instance returned fewer memory types.
diff: @@ -122,8 +122,7 @@ pub fn find_memorytype_index(
  memory_prop: &vk::PhysicalDeviceMemoryProperties,
  flags: vk::MemoryPropertyFlags,
  ) -> Option<u32> {
  - memory_prop
  - .memory_types
  + memory_prop.memory_types[..memory_prop.memory_type_count as _]
  .iter()
  .enumerate()
  .find(|(index, memory_type)| {
  