Re: [PATCH v6 0/1] MR523: vkd3d: Use mutable descriptors if available.

[Henri Verbeet (＠hverbeet)]

> EXT_mutable_descriptor_type requires Vulkan-Headers 1.3.228. That's fine, but please update the README.

Sorry, I forgot about this myself when I wrote that comment, but you'll need to update the VKD3D_CHECK_VULKAN_HEADER_VERSION check in configure.ac as well.