diff --git a/examples/Builtin Extensions/Index.ipynb b/examples/Builtin Extensions/Index.ipynb
index 23cbd3a..1987684 100644
--- a/examples/Builtin Extensions/Index.ipynb
+++ b/examples/Builtin Extensions/Index.ipynb
@@ -1,7 +1,7 @@
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   "name": "",
-  "signature": "sha256:1d90c9be85e777f36c4a30cb65871f4dd6efab6504fafef74184ba3e053130c6"
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  },
  "nbformat": 3,
  "nbformat_minor": 0,
@@ -16,6 +16,13 @@
      ]
     },
     {
+     "cell_type": "markdown",
+     "metadata": {},
+     "source": [
+      "Back to the main [Index](../Index.ipynb)"
+     ]
+    },
+    {
      "cell_type": "heading",
      "level": 1,
      "metadata": {},
diff --git a/examples/Core/Index.ipynb b/examples/Core/Index.ipynb
index 56777ca..fbb84a6 100644
--- a/examples/Core/Index.ipynb
+++ b/examples/Core/Index.ipynb
@@ -1,7 +1,7 @@
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   "name": "",
-  "signature": "sha256:e9beaff0a182620a68fe43e907213d7d5f30b30f6fcf3ba97114f95ea3b61b55"
+  "signature": "sha256:d372ee882991ad9443b66587f16b75a398a5f3e451a6b29528d382b2724644d9"
  },
  "nbformat": 3,
  "nbformat_minor": 0,
@@ -16,6 +16,13 @@
      ]
     },
     {
+     "cell_type": "markdown",
+     "metadata": {},
+     "source": [
+      "Back to the main [Index](../Index.ipynb)"
+     ]
+    },
+    {
      "cell_type": "heading",
      "level": 1,
      "metadata": {},
diff --git a/examples/Customization/Index.ipynb b/examples/Customization/Index.ipynb
index 519dba7..8d3ff0e 100644
--- a/examples/Customization/Index.ipynb
+++ b/examples/Customization/Index.ipynb
@@ -1,9 +1,30 @@
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  "metadata": {
   "name": "",
-  "signature": "sha256:0abf067a20ebda26a671db997ac954770350d292dff7b7d6a4ace8808f70aca1"
+  "signature": "sha256:8edc28217f4096868a0efc9a634bd927f627a2d223fbce516b3bb565810095a5"
  },
  "nbformat": 3,
  "nbformat_minor": 0,
- "worksheets": []
+ "worksheets": [
+  {
+   "cells": [
+    {
+     "cell_type": "markdown",
+     "metadata": {},
+     "source": [
+      "Back to the main [Index](../Index.ipynb)"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [],
+     "language": "python",
+     "metadata": {},
+     "outputs": []
+    }
+   ],
+   "metadata": {}
+  }
+ ]
 }
\ No newline at end of file
diff --git a/examples/Embedding/Index.ipynb b/examples/Embedding/Index.ipynb
index 519dba7..8d3ff0e 100644
--- a/examples/Embedding/Index.ipynb
+++ b/examples/Embedding/Index.ipynb
@@ -1,9 +1,30 @@
 {
  "metadata": {
   "name": "",
-  "signature": "sha256:0abf067a20ebda26a671db997ac954770350d292dff7b7d6a4ace8808f70aca1"
+  "signature": "sha256:8edc28217f4096868a0efc9a634bd927f627a2d223fbce516b3bb565810095a5"
  },
  "nbformat": 3,
  "nbformat_minor": 0,
- "worksheets": []
+ "worksheets": [
+  {
+   "cells": [
+    {
+     "cell_type": "markdown",
+     "metadata": {},
+     "source": [
+      "Back to the main [Index](../Index.ipynb)"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [],
+     "language": "python",
+     "metadata": {},
+     "outputs": []
+    }
+   ],
+   "metadata": {}
+  }
+ ]
 }
\ No newline at end of file
diff --git a/examples/Misc/Index.ipynb b/examples/Misc/Index.ipynb
index 519dba7..8d3ff0e 100644
--- a/examples/Misc/Index.ipynb
+++ b/examples/Misc/Index.ipynb
@@ -1,9 +1,30 @@
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  "metadata": {
   "name": "",
-  "signature": "sha256:0abf067a20ebda26a671db997ac954770350d292dff7b7d6a4ace8808f70aca1"
+  "signature": "sha256:8edc28217f4096868a0efc9a634bd927f627a2d223fbce516b3bb565810095a5"
  },
  "nbformat": 3,
  "nbformat_minor": 0,
- "worksheets": []
+ "worksheets": [
+  {
+   "cells": [
+    {
+     "cell_type": "markdown",
+     "metadata": {},
+     "source": [
+      "Back to the main [Index](../Index.ipynb)"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [],
+     "language": "python",
+     "metadata": {},
+     "outputs": []
+    }
+   ],
+   "metadata": {}
+  }
+ ]
 }
\ No newline at end of file
diff --git a/examples/Notebook/Index.ipynb b/examples/Notebook/Index.ipynb
index 4e5df5a..c7e55ad 100644
--- a/examples/Notebook/Index.ipynb
+++ b/examples/Notebook/Index.ipynb
@@ -1,7 +1,7 @@
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   "name": "",
-  "signature": "sha256:ef5ecdf40e119cd6da50579d4d594dc74cb8c063a74b3f3f8f76834b783f750e"
+  "signature": "sha256:19507dca85a5e09f662fc93e49fb001b373a583174be40845a9c6dba1f66ac68"
  },
  "nbformat": 3,
  "nbformat_minor": 0,
@@ -16,6 +16,13 @@
      ]
     },
     {
+     "cell_type": "markdown",
+     "metadata": {},
+     "source": [
+      "Back to the main [Index](../Index.ipynb)"
+     ]
+    },
+    {
      "cell_type": "heading",
      "level": 1,
      "metadata": {},
diff --git a/examples/Parallel/Index.ipynb b/examples/Parallel/Index.ipynb
index 46363c5..a0682d6 100644
--- a/examples/Parallel/Index.ipynb
+++ b/examples/Parallel/Index.ipynb
@@ -1,7 +1,7 @@
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   "name": "",
-  "signature": "sha256:18fc966556ef56ab0ea6e2977e0d5c9b253fc6f9735839ccf9820156f3f82c95"
+  "signature": "sha256:5c8d1575ad979be13c8f80283f308c489a32e2cdadacd653c145c68cf3a493e1"
  },
  "nbformat": 3,
  "nbformat_minor": 0,
@@ -16,6 +16,13 @@
      ]
     },
     {
+     "cell_type": "markdown",
+     "metadata": {},
+     "source": [
+      "Back to the main [Index](../Index.ipynb)"
+     ]
+    },
+    {
      "cell_type": "heading",
      "level": 1,
      "metadata": {},
diff --git a/examples/Widgets/Index.ipynb b/examples/Widgets/Index.ipynb
index 17c1573..d676647 100644
--- a/examples/Widgets/Index.ipynb
+++ b/examples/Widgets/Index.ipynb
@@ -1,7 +1,7 @@
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  "metadata": {
   "name": "",
-  "signature": "sha256:09ffc895c9a111a5040efba2cb04a59cc8703bf86fa84e20e05c07da46112646"
+  "signature": "sha256:63baf57fdd892f6dd1f3c23b817e1458ebe337b6c5bc7114ff697054a5162f99"
  },
  "nbformat": 3,
  "nbformat_minor": 0,
@@ -16,6 +16,13 @@
      ]
     },
     {
+     "cell_type": "markdown",
+     "metadata": {},
+     "source": [
+      "Back to the main [Index](../Index.ipynb)"
+     ]
+    },
+    {
      "cell_type": "heading",
      "level": 1,
      "metadata": {},