Sync wiki -> header

include/SDL_render.h

@@ -1641,6 +1641,9 @@ extern DECLSPEC int SDLCALL SDL_RenderGeometry(SDL_Renderer *renderer,
  * \return 0 on success, or -1 if the operation is not supported
  *
  * \since This function is available since SDL 2.0.18.
+ *
+ * \sa SDL_RenderGeometry
+ * \sa SDL_Vertex
  */
 extern DECLSPEC int SDLCALL SDL_RenderGeometryRaw(SDL_Renderer *renderer,
                                                SDL_Texture *texture,