Sync SDL3 wiki -> header

[ci skip]

include/SDL3/SDL_gpu.h

@@ -211,9 +211,13 @@
  *
  * ## System Requirements
  *
- * **Vulkan:** Supported on Windows, Linux, Nintendo Switch, and certain
- * Android devices. Requires Vulkan 1.0 with the following extensions and
- * device features:
+ * ### Vulkan
+ *
+ * SDL driver name: "vulkan" (for use in SDL_CreateGPUDevice() and
+ * SDL_PROP_GPU_DEVICE_CREATE_NAME_STRING)
+ *
+ * Supported on Windows, Linux, Nintendo Switch, and certain Android devices.
+ * Requires Vulkan 1.0 with the following extensions and device features:
  *
  * - `VK_KHR_swapchain`
  * - `VK_KHR_maintenance1`
@@ -224,12 +228,19 @@
  * - `drawIndirectFirstInstance`
  * - `sampleRateShading`
  *
- * **D3D12:** Supported on Windows 10 or newer, Xbox One (GDK), and Xbox
- * Series X|S (GDK). Requires a GPU that supports DirectX 12 Feature Level
- * 11_1.
+ * ### D3D12
+ *
+ * SDL driver name: "direct3d12"
+ *
+ * Supported on Windows 10 or newer, Xbox One (GDK), and Xbox Series X|S
+ * (GDK). Requires a GPU that supports DirectX 12 Feature Level 11_1.
+ *
+ * ### Metal
+ *
+ * SDL driver name: "metal"
  *
- * **Metal:** Supported on macOS 10.14+ and iOS/tvOS 13.0+. Hardware
- * requirements vary by operating system:
+ * Supported on macOS 10.14+ and iOS/tvOS 13.0+. Hardware requirements vary by
+ * operating system:
  *
  * - macOS requires an Apple Silicon or
  *   [Intel Mac2 family](https://developer.apple.com/documentation/metal/mtlfeatureset/mtlfeatureset_macos_gpufamily2_v1?language=objc)