Should the C++20 module be recommended to beginners?

While the Vulkan-Hpp C++20 module can make Vulkan quite nice for beginners in the (hopefully near) future, it is currently still in a very experimental state and introduces breaking changes every now and then. This might frustrate newcomers who follow the tutorial.

Sections such as the one under `02_Development_environment` are already outdated:

https://github.com/KhronosGroup/Vulkan-Tutorial/blob/0aad08a13db459eff42718a47bd05ce8590a132a/en/02_Development_environment.adoc?plain=1#L127-L184

Once the module changes in KhronosGroup/Vulkan-Hpp#2443 are complete, I can update the tutorial sections regarding modules here, similar to the updates to our own README and tutorial we are working on in KhronosGroup/Vulkan-Hpp#2358.

Until then, it would probably be a good idea to very explictly mark that section as experimental, or at least write the matching SDK version for the shown sample.