Add buttons

samples/core/get_started/_index.ipynb

@@ -59,8 +59,30 @@
       },
       "cell_type": "markdown",
       "source": [
-        "# Get Started with TensorFlow\n",
-        "\n",
+        "# Get Started with TensorFlow"
+      ]
+    },
+    {
+      "metadata": {
+        "id": "DUNzJc4jTj6G",
+        "colab_type": "text"
+      },
+      "cell_type": "markdown",
+      "source": [
+        "<table align=\"left\"><td>\n",
+        "<a target=\"_blank\"  href=\"https://colab.sandbox.google.com/github/tensorflow/models/blob/master/samples/core/get_started/_index.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/get_started/_index.ipynb\"><img width=32px src=\"https://www.tensorflow.org/images/GitHub-Mark-32px.png\" />View source on Github</a></td></table>"
+      ]
+    },
+    {
+      "metadata": {
+        "id": "hiH7AC-NTniF",
+        "colab_type": "text"
+      },
+      "cell_type": "markdown",
+      "source": [
         "This is a [Google Colaboratory](https://colab.sandbox.google.com/notebooks/welcome.ipynb) notebook file. Python programs are run directly in the browser—a great way to learn and use TensorFlow. To run the Colab notebook:\n",
         "\n",
         "1. Connect to a Python runtime: At the top-right of the menu bar, select *CONNECT*.\n",