Add note about eager. Add web button.

samples/core/guide/autograph.ipynb

@@ -45,7 +45,7 @@
       },
       "cell_type": "code",
       "source": [
-        "#@title Licensed under the Apache License, Version 2.0 (the \"License\");\n",
+        "#@title Licensed under the Apache License, Version 2.0 (the \"License\"); { display-mode: \"form\" }\n",
         "# you may not use this file except in compliance with the License.\n",
         "# You may obtain a copy of the License at\n",
         "#\n",
@@ -60,6 +60,16 @@
       "execution_count": 0,
       "outputs": []
     },
+    {
+      "metadata": {
+        "id": "8Byow2J6LaPl",
+        "colab_type": "text"
+      },
+      "cell_type": "markdown",
+      "source": [
+        "# AutoGraph: Easy control flow for graphs "
+      ]
+    },
     {
       "metadata": {
         "id": "kGXS3UWBBNoc",
@@ -67,13 +77,17 @@
       },
       "cell_type": "markdown",
       "source": [
-        "# AutoGraph: Easy control flow for graphs \n",
-        "\n",
-        "<table class=\"tfo-notebook-buttons\" align=\"left\"><td>\n",
-        "<a target=\"_blank\"  href=\"https://colab.research.google.com/github/tensorflow/models/blob/master/samples/core/guide/autograph.ipynb\">\n",
-        "    <img src=\"https://www.tensorflow.org/images/colab_logo_32px.png\" />Run in Google Colab</a>  \n",
-        "</td><td>\n",
-        "<a target=\"_blank\"  href=\"https://github.com/tensorflow/models/blob/master/samples/core/guide/autograph.ipynb\"><img width=32px src=\"https://www.tensorflow.org/images/GitHub-Mark-32px.png\" />View source on GitHub</a></td></table>"
+        "<table class=\"tfo-notebook-buttons\" align=\"left\">\n",
+        "  <td>\n",
+        "    <a target=\"_blank\" href=\"https://www.tensorflow.org/guide/autograph\"><img src=\"https://www.tensorflow.org/images/tf_logo_32px.png\" />View on TensorFlow.org</a>\n",
+        "  </td>\n",
+        "  <td>\n",
+        "    <a target=\"_blank\" href=\"https://colab.research.google.com/github/tensorflow/models/blob/master/samples/core/guide/autograph.ipynb\"><img src=\"https://www.tensorflow.org/images/colab_logo_32px.png\" />Run in Google Colab</a>\n",
+        "  </td>\n",
+        "  <td>\n",
+        "    <a target=\"_blank\" href=\"https://github.com/tensorflow/models/blob/master/samples/core/guide/autograph.ipynb\"><img src=\"https://www.tensorflow.org/images/GitHub-Mark-32px.png\" />View source on GitHub</a>\n",
+        "  </td>\n",
+        "</table>"
       ]
     },
     {
@@ -123,7 +137,7 @@
       },
       "cell_type": "markdown",
       "source": [
-        "Import TensorFlow and AutoGraph, any supporting modules, and enable [eager execution](https://www.tensorflow.org/guide/eager):"
+        "Import TensorFlow, AutoGraph, and any supporting modules:"
       ]
     },
     {
@@ -144,8 +158,34 @@
         "import tensorflow as tf\n",
         "from tensorflow.contrib import autograph\n",
         "\n",
-        "import matplotlib.pyplot as plt\n",
-        "\n",
+        "import matplotlib.pyplot as plt"
+      ],
+      "execution_count": 0,
+      "outputs": []
+    },
+    {
+      "metadata": {
+        "id": "Hh1PajmUJMNp",
+        "colab_type": "text"
+      },
+      "cell_type": "markdown",
+      "source": [
+        "We'll enable  [eager execution](https://www.tensorflow.org/guide/eager) for demonstration purposes, but AutoGraph works in both eager and [graph execution](https://www.tensorflow.org/guide/graphs) environments:"
+      ]
+    },
+    {
+      "metadata": {
+        "id": "ks_hiqcSJNvg",
+        "colab_type": "code",
+        "colab": {
+          "autoexec": {
+            "startup": false,
+            "wait_interval": 0
+          }
+        }
+      },
+      "cell_type": "code",
+      "source": [
         "tf.enable_eager_execution()"
       ],
       "execution_count": 0,