Update 17-multi-turn/multi_turn.ipynb

Co-authored-by: Copilot <[email protected]>

Author: pedrocassalpacheco

17-multi-turn/multi_turn.ipynb

@@ -186,7 +186,7 @@
    "metadata": {},
    "outputs": [],
    "source": [
-    "# Place holder datastore because an agent must have a datastore.\n",
+    "# Placeholder datastore because an agent must have a datastore.\n",
     "response = client.datastores.create(\n",
     "    name=\"place-holder-datastore\"\n",
     ")\n",