diff --git a/docs/tutorial_cli.md b/docs/tutorial_cli.md
new file mode 100644
index 0000000..91f12c9
--- /dev/null
+++ b/docs/tutorial_cli.md
@@ -0,0 +1 @@
+# Coming soon
diff --git a/examples/tutorial_ex1.ipynb b/examples/tutorial_ex1.ipynb
index f81c6b0..3040b8b 100644
--- a/examples/tutorial_ex1.ipynb
+++ b/examples/tutorial_ex1.ipynb
@@ -87,7 +87,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 7,
+   "execution_count": 2,
    "id": "1a6773d9-db5e-484e-ae21-70acfa744e12",
    "metadata": {},
    "outputs": [],
@@ -103,7 +103,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 8,
+   "execution_count": 3,
    "id": "482b2b61-d2e9-44fd-96ff-57c14a7f5a8d",
    "metadata": {},
    "outputs": [
@@ -111,8 +111,8 @@
      "name": "stdout",
      "output_type": "stream",
      "text": [
-      "2024-08-29 19:11:28 [warning  ] no `date_key` set for <GraphReduceNode: fpath=cust.csv fmt=csv>\n",
-      "2024-08-29 19:11:28 [warning  ] no `date_key` set for <GraphReduceNode: fpath=orders.csv fmt=csv>\n"
+      "2024-08-30 16:40:16 [warning  ] no `date_key` set for <GraphReduceNode: fpath=cust.csv fmt=csv>\n",
+      "2024-08-30 16:40:16 [warning  ] no `date_key` set for <GraphReduceNode: fpath=orders.csv fmt=csv>\n"
      ]
     }
    ],
@@ -129,7 +129,7 @@
     "        compute_period_val=730,\n",
     "        compute_period_unit=PeriodUnit.day,\n",
     "    )\n",
-    "    for f in files.keys()\n",
+    "    for f in prefixes.keys()\n",
     "}"
    ]
   },