adding better title to Chp1

Author: CamDavidsonPilon

Chapter1_Introduction/Chapter1_Introduction.ipynb

@@ -7,12 +7,25 @@
  "worksheets": [
   {
    "cells": [
+    {
+     "cell_type": "markdown",
+     "metadata": {},
+     "source": [
+      "Probabilistic Programming\n",
+      "=====\n",
+      "and Bayesian Methods for Hackers \n",
+      "========\n",
+      "\n",
+      "#####Version 0.1\n",
+      "Welcome to *Bayesian Methods for Hackers*. The full Github repository, and additional chapters, is available at [github/Probabilistic-Programming-and-Bayesian-Methods-for-Hackers](https://github.com/CamDavidsonPilon/Probabilistic-Programming-and-Bayesian-Methods-for-Hackers). We hope you enjoy!"
+     ]
+    },
     {
      "cell_type": "markdown",
      "metadata": {},
      "source": [
       "Chapter 1\n",
-      "======\n",
+      "------\n",
       "***"
      ]
     },