Moved testing section to a new notebook cell.

sorting-searching/insertion-sort.ipynb

@@ -83,8 +83,17 @@
     "                temp = data[r]\n",
     "                data[l+1:r+1] = data[l:r]\n",
     "                data[l] = temp\n",
-    "                break\n",
-    "\n",
+    "                break"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {
+    "collapsed": true
+   },
+   "outputs": [],
+   "source": [
     "print('Empty input')\n",
     "data = []\n",
     "insertion_sort(data)\n",