Doxygen comment fixes in SDL_pixels.h

include/SDL3/SDL_pixels.h

@@ -707,10 +707,10 @@ typedef struct SDL_FColor
  */
 typedef struct SDL_Palette
 {
-    int ncolors;        /*< number of elements in `colors`. */
-    SDL_Color *colors;  /*< an array of colors, `ncolors` long. */
-    Uint32 version;     /*< internal use only, do not touch. */
-    int refcount;       /*< internal use only, do not touch. */
+    int ncolors;        /**< number of elements in `colors`. */
+    SDL_Color *colors;  /**< an array of colors, `ncolors` long. */
+    Uint32 version;     /**< internal use only, do not touch. */
+    int refcount;       /**< internal use only, do not touch. */
 } SDL_Palette;
 
 /**