Update zenguard_library.ipynb

Author: Baur

docs/colabs/zenguard_library.ipynb

@@ -148,7 +148,7 @@
         "id": "detect-injection"
       },
       "source": [
-        "### Detect Prompt Injection"
+        "## Detect Prompt Injection"
       ]
     },
     {
@@ -184,11 +184,37 @@
       "* `500 Internal Server Error`: Internal problem, please escalate to the team."
       ]
     },
+    {
+      "cell_type": "markdown",
+      "metadata": {
+        "id": "detect-pii"
+      },
+      "source": [
+        "## Detect PII"
+      ]
+    },
+    {
+      "cell_type": "code",
+      "metadata": {
+        "id": "pii-detection"
+      },
+      "source": [
+        "messages = [\"My credit card number is 1234-5679-1234-1234 and my name is John Smith.\"]\n",
+        "response = zenguard.detect(detectors=[Detector.PII], prompt=message)\n",
+        "if response.get(\"responses\")[0].get(\"common_response\").get(\"is_detected\") is True:\n",
+        "    pprint(\"PII detected. ZenGuard: 1, big brother: 0.\")\n",
+        "else:\n",
+        "    pprint(\"No PII detected: your data is safe to feed into any LLM.\")\n",
+        "pprint(response)"
+      ],
+      "execution_count": null,
+      "outputs": []
+    },
     {
       "cell_type": "markdown",
       "metadata": {},
       "source": [
-      "### More examples\n",
+      "## More examples\n",
       "\n",
       " * [Detect PII](https://docs.zenguard.ai/detectors/pii/)\n",
       " * [Detect Allowed Topics](https://docs.zenguard.ai/detectors/allowed-topics/)\n",