add contextual docs (#596)

* add docs for contextual menu

* add warnings

Author: dks333

docs.json

@@ -141,10 +141,7 @@
               {
                 "group": "Model Context Protocol",
                 "icon": "server",
-                "pages": [
-                  "advanced/mcp/quickstart",
-                  "advanced/mcp/generate"
-                ]
+                "pages": ["advanced/mcp/quickstart", "advanced/mcp/generate"]
               },
               {
                 "group": "REST API",
@@ -373,5 +370,8 @@
     "koala": {
       "publicApiKey": "pk_76a6caa274e800f3ceff0b2bc6b9b9d82ab8"
     }
+  },
+  "contextual": {
+    "options": ["copy", "view", "chatgpt", "claude"]
   }
 }

images/page-context-menu.png

@@ -446,6 +446,24 @@ Every documentation site requires a `docs.json` file that contains the core conf
   </Expandable>
 </ResponseField>
 
+<ResponseField name="contextual" type="object">
+  <Expandable title="Contextual">
+    <ResponseField name="options" type="('copy' | 'view' | 'chatgpt' | 'claude')[]" required>
+      The options to be displayed in the contextual menu. The first option is the default option.
+      - `copy`: Copy the current page as markdown to the clipboard
+      - `view`: View the current page as markdown in a new tab
+      - `chatgpt`: Feed the current page to ChatGPT
+      - `claude`: Feed the current page to Claude
+
+      <img src="/images/page-context-menu.png" alt="Contextual Menu" className="rounded-xl" />
+
+      <Warning>
+        The contextual menu is only available on preview & production deployments.
+      </Warning>
+    </ResponseField>
+  </Expandable>
+</ResponseField>
+
 ### API Configurations
 
 <ResponseField name="api" type="object">