Add capsule networks notebook

index.ipynb

@@ -33,12 +33,15 @@
     "* [Matplotlib](tools_matplotlib.ipynb)\n",
     "* [Pandas](tools_pandas.ipynb)\n",
     "\n",
-    "## Math tutorials\n",
+    "## Math Tutorials\n",
     "* [Linear Algebra](math_linear_algebra.ipynb)\n",
     "* Calculus (coming soon)\n",
     "\n",
+    "## Extra Material\n",
+    "* [Capsule Networks](extra_capsnets.ipynb)\n",
+    "\n",
     "## Misc.\n",
-    "* [Equations](book_equations.ipynb) (list of equations in the book)"
+    "* [Equations](book_equations.ipynb) (list of equations in the book)\n"
    ]
   },
   {
@@ -74,21 +77,21 @@
  ],
  "metadata": {
   "kernelspec": {
-   "display_name": "Python 2",
+   "display_name": "Python 3",
    "language": "python",
-   "name": "python2"
+   "name": "python3"
   },
   "language_info": {
    "codemirror_mode": {
     "name": "ipython",
-    "version": 2
+    "version": 3
    },
    "file_extension": ".py",
    "mimetype": "text/x-python",
    "name": "python",
    "nbconvert_exporter": "python",
-   "pygments_lexer": "ipython2",
-   "version": "2.7.12"
+   "pygments_lexer": "ipython3",
+   "version": "3.5.2"
   },
   "nav_menu": {},
   "toc": {