Fix React Query doc (#10246)

* Fix React Query doc

* Test

* Revert "Test"

This reverts commit 9152380.

Author: eddeee888

website/src/pages/docs/guides/react-query.mdx

@@ -177,7 +177,7 @@ export async function execute<TResult, TVariables>(
       Accept: 'application/graphql-response+json'
     },
     body: JSON.stringify({
-      query: document,
+      query,
       variables
     })
   })