add note for recommend using AAD

Author: chienyuanchang

README.md

@@ -97,6 +97,7 @@ Once you click the link above, please follow the steps below to set up the Codes
    ```
 
 ### (Option 3) Use Endpoint and Key (No `azd` Required)
+> ⚠️ Note: Using a subscription key works, but using a token provider with Azure Active Directory (AAD) is much safer and is highly recommended for production environments.
 1. Create [Azure AI Services resource](docs/create_azure_ai_service.md)
 2. Copy `notebooks/.env.sample` to `notebooks/.env`
     ```bash

notebooks/analyzer_training.ipynb

@@ -65,7 +65,9 @@
     "> ⚠️ Important:\n",
     "You must update the code below to match your Azure authentication method.\n",
     "Look for the `# IMPORTANT` comments and modify those sections accordingly.\n",
-    "If you skip this step, the sample may not run correctly."
+    "If you skip this step, the sample may not run correctly.\n",
+    "\n",
+    "> ⚠️ Note: Using a subscription key works, but using a token provider with Azure Active Directory (AAD) is much safer and is highly recommended for production environments."
    ]
   },
   {

notebooks/build_person_directory.ipynb

@@ -33,7 +33,9 @@
     "> ⚠️ Important:\n",
     "You must update the code below to match your Azure authentication method.\n",
     "Look for the `# IMPORTANT` comments and modify those sections accordingly.\n",
-    "If you skip this step, the sample may not run correctly."
+    "If you skip this step, the sample may not run correctly.\n",
+    "\n",
+    "> ⚠️ Note: Using a subscription key works, but using a token provider with Azure Active Directory (AAD) is much safer and is highly recommended for production environments."
    ]
   },
   {

notebooks/classifier.ipynb

@@ -183,7 +183,9 @@
     "⚠️ Important:\n",
     "You must update the code below to match your Azure authentication method.\n",
     "Look for the `# IMPORTANT` comments and modify those sections accordingly.\n",
-    "If you skip this step, the sample may not run correctly."
+    "If you skip this step, the sample may not run correctly.\n",
+    "\n",
+    "⚠️ Note: Using a subscription key works, but using a token provider with Azure Active Directory (AAD) is much safer and is highly recommended for production environments."
    ]
   },
   {

notebooks/content_extraction.ipynb

@@ -43,7 +43,9 @@
     "> ⚠️ Important:\n",
     "You must update the code below to match your Azure authentication method.\n",
     "Look for the `# IMPORTANT` comments and modify those sections accordingly.\n",
-    "If you skip this step, the sample may not run correctly."
+    "If you skip this step, the sample may not run correctly.\n",
+    "\n",
+    "> ⚠️ Note: Using a subscription key works, but using a token provider with Azure Active Directory (AAD) is much safer and is highly recommended for production environments."
    ]
   },
   {

notebooks/conversational_field_extraction.ipynb

@@ -93,7 +93,9 @@
     "> ⚠️ Important:\n",
     "You must update the code below to match your Azure authentication method.\n",
     "Look for the `# IMPORTANT` comments and modify those sections accordingly.\n",
-    "If you skip this step, the sample may not run correctly."
+    "If you skip this step, the sample may not run correctly.\n",
+    "\n",
+    "> ⚠️ Note: Using a subscription key works, but using a token provider with Azure Active Directory (AAD) is much safer and is highly recommended for production environments."
    ]
   },
   {

notebooks/field_extraction.ipynb

@@ -103,7 +103,9 @@
     "> ⚠️ Important:\n",
     "You must update the code below to match your Azure authentication method.\n",
     "Look for the `# IMPORTANT` comments and modify those sections accordingly.\n",
-    "If you skip this step, the sample may not run correctly."
+    "If you skip this step, the sample may not run correctly.\n",
+    "\n",
+    "> ⚠️ Note: Using a subscription key works, but using a token provider with Azure Active Directory (AAD) is much safer and is highly recommended for production environments."
    ]
   },
   {

notebooks/management.ipynb

@@ -43,7 +43,9 @@
     "> ⚠️ Important:\n",
     "You must update the code below to match your Azure authentication method.\n",
     "Look for the `# IMPORTANT` comments and modify those sections accordingly.\n",
-    "If you skip this step, the sample may not run correctly."
+    "If you skip this step, the sample may not run correctly.\n",
+    "\n",
+    "> ⚠️ Note: Using a subscription key works, but using a token provider with Azure Active Directory (AAD) is much safer and is highly recommended for production environments."
    ]
   },
   {