chore(docs): make 2nd example more different

Author: jeertmans

docs/source/reference/magic_example.ipynb

@@ -51,17 +51,18 @@
    "source": [
     "class MyOtherSlide(Slide):\n",
     "    def construct(self):\n",
-    "        square = Square()\n",
-    "        square.save_state()\n",
-    "        circle = Circle()\n",
+    "        text = VGroup(\n",
+    "            Text(\"Press\"),\n",
+    "            Text(\"and\"),\n",
+    "            Text(\"loop\"),\n",
+    "        ).arrange(DOWN, buff=1.)\n",
     "        \n",
-    "        self.play(Create(square))\n",
+    "        self.play(Write(text))\n",
     "        self.next_slide()\n",
     "        self.start_loop()\n",
-    "        self.play(Transform(square, circle))\n",
-    "        self.play(Restore(square))\n",
+    "        self.play(Indicate(text[-1], scale_factor=2., run_time=.5))\n",
     "        self.end_loop()\n",
-    "        self.play(FadeOut(square))"
+    "        self.play(FadeOut(text))"
    ]
   },
   {