Update stagehand.mdx (#25507)

add gif

Author: kathayl

src/content/docs/browser-rendering/platform/stagehand.mdx

@@ -23,7 +23,8 @@ This guide shows you how to deploy a [Worker](/workers/) that uses Stagehand, Br
 ## Use Stagehand in a Worker with Workers AI
 
 In this example, you will use Stagehand to search for a movie on this [example movie directory](https://demo.playwright.dev/movies), extract its details (title, year, rating, duration, and genre), and return the information along with a screenshot of the webpage.
-<Details header="See an example of the result"> ![Stagehand example result](~/assets/images/browser-rendering/stagehand-example.png)</Details>
+<Details header="See a video of this example"> ![Stagehand video](/images/browser-rendering/speedystagehand.gif) 
+Output: ![Stagehand example result](~/assets/images/browser-rendering/stagehand-example.png)</Details>
 
 If instead you want to skip the steps and get started right away, select **Deploy to Cloudflare** below.