added pow42 mandelbulb

src/main.js

@@ -49,6 +49,10 @@ init_slideshow(build_image_list([
         name: "mandelbulb12.png",
         text: "A 3d rendering of a mandelbulb with a power of 12"
     },
+    {
+        name: "mandelbulb42.png",
+        text: "A 3d rendering of a mandelbulb with a power of 42"
+    },
     {
         name: "mandelbrot2.png",
         text: "A mandelbrot set, 250 megapixel render"