Command buffer chapter is unclear on some changes

[MrLixam]

Hi there,

I've been following this tutorial for a bit and arriving on The command buffer chapter, we're presented with an example:

vk::CommandPoolCreateInfo poolInfo{.flags            = vk::CommandPoolCreateFlagBits::eResetCommandBuffer,
                                   .queueFamilyIndex = queueIndex};

queueIndex being picked up from the logical device creation chapter and silently being put as a class member isn't really clear for the purpose of a tutorial.
Simply clarifying that queueIndex is moved from local scope inside logical device creation to class member would help or alternatively, set queueIndex as a class member at logical device creation and simply explain that the value will be needed in a later chapter