Restored inline TOC but fixed typo causing it show on dev site

Author: nparavicini7

guide/13-managing-arcgis-applications/authoring-arcgis-dashboards.ipynb

@@ -7,6 +7,32 @@
     "# Authoring ArcGIS Dashboards using `arcgis.apps.dashboard`"
    ]
   },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "## Table of Contents\n",
+    "* [Introduction](#Introduction)\n",
+    "* [Dashboard Elements](#Dashboard-Elements)\n",
+    "    * [Header](#Header)\n",
+    "    * [SidePanel](#SidePanel)\n",
+    "    * [Number Selector](#Number-Selector)\n",
+    "    * [Date Picker](#Date-Picker)\n",
+    "    * [Category Selector](#Category-Selector)\n",
+    "    * [Map Element](#Map-Element)\n",
+    "    * [MapLegend](#MapLegend)\n",
+    "    * [SerialChart](#SerialChart)\n",
+    "    * [PieChart](#PieChart)\n",
+    "    * [Indicator](#Indicator)\n",
+    "    * [Gauge](#Gauge)\n",
+    "    * [List](#List)\n",
+    "    * [Details](#Details)\n",
+    "    * [RichText](#RichText)\n",
+    "    * [Embedded Content](#Embedded-Content)\n",
+    "* [Create Dashboard](#Create-Dashboard)\n",
+    "* [Share Dashboard](#Share-Dashboard)"
+   ]
+  },
   {
    "cell_type": "markdown",
    "metadata": {},