Update zenguard_library.ipynb

Author: Baur

docs/colabs/zenguard_library.ipynb

@@ -199,7 +199,7 @@
         "id": "pii-detection"
       },
       "source": [
-        "messages = [\"My credit card number is 1234-5679-1234-1234 and my name is John Smith.\"]\n",
+        "message = \"My SSN is 777-55-66 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",