Add license note

notebooks/mpi_tutorial.ipynb

@@ -374,10 +374,22 @@
     "In this example, the root processor generates random data and then scatters it to all processes using MPI.Scatter. Each process calculates the average of its local data, and then the local averages are gathered using MPI.Gather. The root processor computes the global average of all sub-averages and prints it."
    ]
   },
+  {
+   "cell_type": "markdown",
+   "id": "5e8f6e6a",
+   "metadata": {},
+   "source": [
+    "# License\n",
+    "\n",
+    "TODO: replace link to website\n",
+    "\n",
+    "This notebook is part of the course [Programming Large Scale Parallel Systems](http://localhost:8000/) at Vrije Universiteit Amsterdam and may be used under a [CC BY 4.0](https://creativecommons.org/licenses/by/4.0/) license."
+   ]
+  },
   {
    "cell_type": "code",
    "execution_count": null,
-   "id": "fcf34823",
+   "id": "c9364808",
    "metadata": {},
    "outputs": [],
    "source": []