Update gluon_recommender_system.ipynb

Author: NRauschmayr

introduction_to_applying_machine_learning/gluon_recommender_system/gluon_recommender_system.ipynb

@@ -397,7 +397,7 @@
    "source": [
     "# Initialize network parameters\n",
     "ctx = mx.gpu()\n",
-    "net.collect_params().initialize(mx.init.Xavier(magnitude=2.24),\n",
+    "net.collect_params().initialize(mx.init.Xavier(magnitude=60),\n",
     "                                ctx=ctx,\n",
     "                                force_reinit=True)\n",
     "net.hybridize()\n",