Add note about visibility of markers

docs/docs/guides/privacy/presidio_data_anonymization/qa_privacy_protection.ipynb

@@ -99,11 +99,12 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 4,
+   "execution_count": 1,
    "metadata": {},
    "outputs": [],
    "source": [
     "# Util function for coloring the PII markers\n",
+    "# NOTE: It will not be visible on documentation page, only in the notebook\n",
     "import re\n",
     "\n",
     "\n",
@@ -960,9 +961,9 @@
  ],
  "metadata": {
   "kernelspec": {
-   "display_name": "poetry-venv",
+   "display_name": "langchain-py-env",
    "language": "python",
-   "name": "poetry-venv"
+   "name": "python3"
   },
   "language_info": {
    "codemirror_mode": {
@@ -974,7 +975,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.9.1"
+   "version": "3.11.4"
   }
  },
  "nbformat": 4,