fix query.mdx link to execute.mdx for live docs (#259)

Author: DariuszDepta

src/pages/core/entrypoints/query.mdx

@@ -6,9 +6,9 @@ import { Callout } from "nextra/components";
 
 # Query
 
-In the previous section we talked about the [`execute` endpoint]. The `query` endpoint is actually
-pretty similar to its sibling `execute`, but with one key difference: The storage is only accessible
-immutably.
+In the previous section we talked about the [`execute`](execute) endpoint. The `query` endpoint is
+actually pretty similar to its sibling `execute`, but with one key difference: The storage is only
+accessible immutably.
 
 This means you can only _read_ from the storage but not _write_ to it.