Update custom example in contextual menu page (#965)

* update custom example

* change object to string

Author: ethanpalm

ai/contextual-menu.mdx

@@ -84,28 +84,22 @@ Create custom options in the contextual menu by adding an object to the `options
 
 Example custom option:
 
-```json {8-21}
-"contextual": {
-  "options": [
-    "copy",
-    "view",
-    "chatgpt",
-    "claude",
-    "perplexity",
-    {
-      "title": "Ask Gemini",
-      "description": "Ask Google Gemini about the current page",
-      "icon": "sparkle",
-      "href": {
-        "base": "https://gemini.google.com/app",
-        "query": [
-          {
-            "key": "q",
-            "value": "Ask question about https://mintlify.com/docs$path.md"
-          }
+```json {9-14} wrap
+{
+    "contextual": {
+        "options": [
+            "copy",
+            "view",
+            "chatgpt",
+            "claude",
+            "perplexity",
+            {
+                "title": "Request a feature",
+                "description": "Join the discussion on GitHub to request a new feature",
+                "icon": "plus",
+                "href": "https://github.com/orgs/mintlify/discussions/categories/feature-requests"
+            }
         ]
-      }
     }
-  ]
 }
 ```