Update FileSelector with remote section

Author: hoxbro

examples/reference/widgets/FileSelector.ipynb

@@ -81,6 +81,38 @@
    "source": [
     "files.value"
    ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "## Remote filesystem\n",
+    "\n",
+    "By using the power of [`fsspec`](https://filesystem-spec.readthedocs.io/en/latest/) we can connect to remote filesystems. In the example below we use the `s3fs` package to connect to a remote S3 server"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "import s3fs\n",
+    "\n",
+    "fs = s3fs.S3FileSystem(anon=True)\n",
+    "\n",
+    "s3_files = pn.widgets.FileSelector(directory=\"s3://datasets.holoviz.org\", fs=fs)\n",
+    "s3_files"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "s3_files.value"
+   ]
   }
  ],
  "metadata": {