fix typo in hf_interactive

Author: MichaelClifford

demo-notebooks/interactive/hf_interactive.ipynb

@@ -87,7 +87,7 @@
    "source": [
     "# Create our cluster and submit appwrapper\n",
     "cluster = Cluster(ClusterConfiguration(name='hfgputest', \n",
-    "                                       namspace=\"default,\"\n",
+    "                                       namespace=\"default\",\n",
     "                                       min_worker=1, \n",
     "                                       max_worker=1, \n",
     "                                       min_cpus=8, \n",