Sync SDL3 wiki -> header

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include/SDL3/SDL_gpu.h

@@ -96,8 +96,8 @@
  * efficient way of doing this, provided that the app is willing to tolerate
  * some latency. When the app uses SDL_DownloadFromGPUTexture() or
  * SDL_DownloadFromGPUBuffer(), submitting the command buffer with
- * SubmitGPUCommandBufferAndAcquireFence() will return a fence handle that the
- * app can poll or wait on in a thread. Once the fence indicates that the
+ * SDL_SubmitGPUCommandBufferAndAcquireFence() will return a fence handle that
+ * the app can poll or wait on in a thread. Once the fence indicates that the
  * command buffer is done processing, it is safe to read the downloaded data.
  * Make sure to call SDL_ReleaseGPUFence() when done with the fence.
  *