Clean up stale documentation audit findings (#10114)

Co-authored-by: Douwe M Osinga <douwe@sidewalklabs.com>

documentation/docs/tutorials/subagents.md

@@ -1,13 +1,9 @@
 ---
 title: Using Subagents
 description: Spin up a team of subagents to build a fully functional app
-image: /assets/images/tutorial-using-subagents-ef265627024db73e73d80e5799ed0c1a.png
+image: /img/tutorial-using-subagents.png
 ---
 
-<div style={{display: 'none'}}>
-![](/img/tutorial-using-subagents.png)
-</div>
-
 This tutorial walks you through how to spin up a team of AI [subagents](/docs/guides/context-engineering/subagents/) and guide them through building a fully functional app.
 
 You'll build **AI BriefMe**, an app that generates a structured executive style briefing based on any topic. 
@@ -390,4 +386,3 @@ Don't expect your app to be production ready. This workshop shows how vibe codin
    - `http://localhost:3000/index.html`
    - `http://localhost:3000/style.css`
    - `http://localhost:3000/script.js`
-