Update setup_poc.ipynb (#2752)

Add job templates arg

to avoid "Unable to handle command: config due to: job_templates_dir='None', it is not a directory" error

Use full name

Co-authored-by: Yuan-Ting Hsieh (謝沅廷) <yuantingh@nvidia.com>

examples/tutorials/setup_poc.ipynb

@@ -81,12 +81,12 @@
     "If you prefer not to use environment variable, you can do the followings: \n",
     "\n",
     "```\n",
-    "! nvflare config -pw /tmp/nvflare/poc\n",
+    "! nvflare config -pw /tmp/nvflare/poc --job_templates_dir ../../job_templates\n",
     "\n",
     "```\n",
     "or \n",
     "```\n",
-    "! nvflare config -poc_workspace_dir /tmp/nvflare/poc\n",
+    "! nvflare config --poc_workspace_dir /tmp/nvflare/poc --job_templates_dir ../../job_templates\n",
     "```"
    ]
   },
@@ -99,7 +99,7 @@
    },
    "outputs": [],
    "source": [
-    "! nvflare config -pw /tmp/nvflare/poc"
+    "! nvflare config -pw /tmp/nvflare/poc --job_templates_dir ../../job_templates"
    ]
   },
   {