Update ipyvizzu_demo.ipynb

ipyvizzu_demo.ipynb

@@ -61,7 +61,7 @@
     "# add data\n",
     "\n",
     "data = Data()\n",
-    "data_frame = pd.read_csv(\"https://github.com/vizzuhq/ipyvizzu/raw/main/docs/examples/stories/titanic/titanic.csv\")\n",
+    "data_frame = pd.read_csv(\"https://ipyvizzu.vizzuhq.com/0.14/showcases/titanic/titanic.csv\")\n",
     "data.add_data_frame(data_frame)\n",
     "\n",
     "chart.animate(data)\n"