Update Chapter1.ipynb

Simplify ylim tweaks

Author: monkpit

Chapter1_Introduction/Chapter1.ipynb

@@ -360,8 +360,7 @@
     "        label=\"posterior distribution\",\n",
     "        lw=\"3\", edgecolor=colours[1])\n",
     "\n",
-    "axes = plt.gca()",
-    "axes.set_ylim([0,1])",
+    "plt.ylim(0,1)",
     "plt.xticks([0.20, .95], [\"Bugs Absent\", \"Bugs Present\"])\n",
     "plt.title(\"Prior and Posterior probability of bugs present\")\n",
     "plt.ylabel(\"Probability\")\n",