diff --git a/index.ipynb b/index.ipynb
index 9fa1d64..ca256ca 100644
--- a/index.ipynb
+++ b/index.ipynb
@@ -11,7 +11,7 @@
     "\n",
     "*Welcome to the Machine Learning Notebooks!*\n",
     "\n",
-    "[Prerequisites](#prerequisites) (see below)\n",
+    "[Prerequisites](#Prerequisites) (see below)\n",
     "\n",
     "## Notebooks\n",
     "1. [The Machine Learning landscape](01_the_machine_learning_landscape.ipynb)\n",
@@ -68,7 +68,9 @@
    "cell_type": "code",
    "execution_count": null,
    "metadata": {
-    "collapsed": true
+    "collapsed": true,
+    "deletable": true,
+    "editable": true
    },
    "outputs": [],
    "source": []