Add article tags limitation callout to createArticle and updateArticle

Tags cannot be managed via the Articles API, but this wasn't documented
on the create/update endpoints. Adds the same callout format used by
listArticles to prevent confusion when developers attempt to set tags.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: markdennis22

descriptions/2.14/api.intercom.io.yaml

@@ -1041,7 +1041,11 @@ paths:
       tags:
       - Articles
       operationId: createArticle
-      description: You can create a new article by making a POST request to `https://api.intercom.io/articles`.
+      description: "You can create a new article by making a POST request to `https://api.intercom.io/articles`.\n\n>
+        \U0001F4D8 Tags cannot be managed via the Articles API\n>\n> While article tags are
+        returned in API responses, you cannot create, update, or delete tags through
+        the `/articles` endpoints. To manage article tags, use the Intercom UI or
+        the dedicated Tags API endpoints.\n"
       responses:
         '200':
           description: article created
@@ -1236,8 +1240,12 @@ paths:
       tags:
       - Articles
       operationId: updateArticle
-      description: You can update the details of a single article by making a PUT
-        request to `https://api.intercom.io/articles/<id>`.
+      description: "You can update the details of a single article by making a PUT
+        request to `https://api.intercom.io/articles/<id>`.\n\n> \U0001F4D8 Tags cannot be
+        managed via the Articles API\n>\n> While article tags are returned in API
+        responses, you cannot create, update, or delete tags through the `/articles`
+        endpoints. To manage article tags, use the Intercom UI or the dedicated Tags
+        API endpoints.\n"
       responses:
         '200':
           description: successful

descriptions/2.15/api.intercom.io.yaml

@@ -1041,7 +1041,11 @@ paths:
       tags:
       - Articles
       operationId: createArticle
-      description: You can create a new article by making a POST request to `https://api.intercom.io/articles`.
+      description: "You can create a new article by making a POST request to `https://api.intercom.io/articles`.\n\n>
+        \U0001F4D8 Tags cannot be managed via the Articles API\n>\n> While article tags are
+        returned in API responses, you cannot create, update, or delete tags through
+        the `/articles` endpoints. To manage article tags, use the Intercom UI or
+        the dedicated Tags API endpoints.\n"
       responses:
         '200':
           description: article created
@@ -1236,8 +1240,12 @@ paths:
       tags:
       - Articles
       operationId: updateArticle
-      description: You can update the details of a single article by making a PUT
-        request to `https://api.intercom.io/articles/<id>`.
+      description: "You can update the details of a single article by making a PUT
+        request to `https://api.intercom.io/articles/<id>`.\n\n> \U0001F4D8 Tags cannot be
+        managed via the Articles API\n>\n> While article tags are returned in API
+        responses, you cannot create, update, or delete tags through the `/articles`
+        endpoints. To manage article tags, use the Intercom UI or the dedicated Tags
+        API endpoints.\n"
       responses:
         '200':
           description: successful