Update Python 3.5.1

01 - Preliminaries.ipynb

@@ -422,7 +422,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.4.3"
+   "version": "3.5.1"
   }
  },
  "nbformat": 4,