Clone repo in tokenization tutorial

Author: ddaspit

samples/tokenization.ipynb

@@ -18,6 +18,16 @@
     "%pip install sil-machine[sentencepiece]"
    ]
   },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "!git clone https://github.com/sillsdev/machine.py.git\n",
+    "%cd machine.py/samples"
+   ]
+  },
   {
    "cell_type": "markdown",
    "metadata": {},