Fix a formatting issue

Signed-off-by: Rostan Tabet <rtabet@nvidia.com>

Author: rostan-t

docs/examples/getting_started/dynamic_mode.ipynb

@@ -559,7 +559,9 @@
     "        t_start = timer()\n",
     "        n_test = 20\n",
     "        i = 0\n",
-    "        for jpegs, _ in itertools.cycle(reader.next_epoch(batch_size=batch_size)):\n",
+    "        for jpegs, _ in itertools.cycle(\n",
+    "            reader.next_epoch(batch_size=batch_size)\n",
+    "        ):\n",
     "            ndd.decoders.image(jpegs, device=device)\n",
     "            i += 1\n",
     "            if i >= n_test:\n",