Sync SDL3 wiki -> header

[ci skip]

include/SDL3/SDL_gpu.h

@@ -982,7 +982,7 @@ typedef enum SDL_GPUCubeMapFace
  * Unlike textures, READ | WRITE can be used for simultaneous read-write
  * usage. The same data synchronization concerns as textures apply.
  *
- * If you use a STORAGE flag, the data in the buffer must respect std140
+ * If you use a STORAGE flag, the data in the buffer must respect std430
  * layout conventions. In practical terms this means you must ensure that vec3
  * and vec4 fields are 16-byte aligned.
  *