Remove code ticks from heading

PiperOrigin-RevId: 489591242

Author: faizan-m

site/en/guide/intro_to_graphs.ipynb

@@ -37,7 +37,7 @@
         "id": "6xgB0Oz5eGSQ"
       },
       "source": [
-        "# Introduction to graphs and `tf.function`"
+        "# Introduction to graphs and tf.function"
       ]
     },
     {
@@ -858,8 +858,8 @@
   ],
   "metadata": {
     "colab": {
-      "collapsed_sections": [],
       "name": "intro_to_graphs.ipynb",
+      "provenance": [],
       "toc_visible": true
     },
     "kernelspec": {