Fix "Open in Colab"

PiperOrigin-RevId: 446472645
Change-Id: I0503f340dd46e92c73af5daca4cb9581358de8fd

Author: DeepMind

tutorial.ipynb

@@ -6,8 +6,9 @@
         "id": "MpkYHwCqk7W-"
       },
       "source": [
-        "# \u003cdiv align=\"center\"\u003e**`dm_control` tutorial**\u003c/div\u003e\n",
-        "# \u003cdiv align=\"center\"\u003e[![Open In Colab](https://colab.research.google.com/assets/colab-badge.svg)](https://colab.research.google.com/github/deepmind/dm_control/blob/master/tutorial.ipynb)\u003c/div\u003e\n",
+        "# **`dm_control` tutorial**\n",
+        "\n",
+        "[![Open In Colab](https://colab.research.google.com/assets/colab-badge.svg)](https://colab.research.google.com/github/deepmind/dm_control/blob/master/tutorial.ipynb)\n",
         "\n",
         "\n",
         "\n",
@@ -1817,6 +1818,7 @@
       },
       "name": "dm_control",
       "private_outputs": true,
+      "provenance": [],
       "toc_visible": true
     },
     "kernelspec": {