update more notebooks

Author: aaravnavani

docs/examples/check_for_pii.ipynb

@@ -40,6 +40,15 @@
     "! python -m spacy download en_core_web_lg -q"
    ]
   },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "We also have to install the ```DetectPII``` validator from Guardrails Hub:\n",
+    "\n",
+    "```guardrails hub install hub://guardrails/detect_pii```"
+   ]
+  },
   {
    "cell_type": "code",
    "execution_count": 2,
@@ -57,7 +66,7 @@
    "source": [
     "# Import the guardrails package\n",
     "import guardrails as gd\n",
-    "from guardrails.validators import PIIFilter\n",
+    "from guardrails.hub import DetectPII\n",
     "from rich import print"
    ]
   },
@@ -140,7 +149,7 @@
     "\n",
     "# One can also pass in a list of entities supported by Presidio to the `pii_entities` argument.\n",
     "guard = gd.Guard.from_string(\n",
-    "    validators=[PIIFilter(pii_entities=\"pii\", on_fail=\"fix\")],\n",
+    "    validators=[DetectPII(pii_entities=\"pii\", on_fail=\"fix\")],\n",
     "    description=\"testmeout\",\n",
     ")"
    ]
@@ -327,7 +336,7 @@
     "# Let's try with SPI entities\n",
     "# Create a new guard object\n",
     "guard = gd.Guard.from_string(\n",
-    "    validators=[PIIFilter(pii_entities=\"spi\", on_fail=\"fix\")],\n",
+    "    validators=[DetectPII(pii_entities=\"spi\", on_fail=\"fix\")],\n",
     "    description=\"testmeout\",\n",
     ")"
    ]

docs/examples/competitors_check.ipynb

@@ -10,6 +10,15 @@
     "To download this example as a Jupyter notebook, click [here](https://github.com/guardrails-ai/guardrails/blob/main/docs/examples/competitors_check.ipynb).\n"
    ]
   },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "We first need to install the ```CompetitorCheck``` validator from Guardrails Hub: \n",
+    "\n",
+    "```guardrails hub install hub://guardrails/competitor_check```\n"
+   ]
+  },
   {
    "cell_type": "code",
    "execution_count": 1,
@@ -26,7 +35,7 @@
    ],
    "source": [
     "import guardrails as gd\n",
-    "from guardrails.validators import CompetitorCheck\n",
+    "from guardrails.hub import CompetitorCheck\n",
     "from rich import print"
    ]
   },