Update with-ai.mdx (#4438)

Author: starfleeth

docs/with-ai.mdx

@@ -44,7 +44,7 @@ Install the Temporal plugin from the [Cursor Marketplace](https://cursor.com/mar
 command in Cursor's agent chat:
 
 ```
-/add-plugin temporal-developer
+/add-plugin temporal
 ```
 
 </TabItem>