Adding a Demo button that links to the Hello World video on YT (#18054)

* Adding a Demo button that links to the Hello World video on YT

* updates

Author: jason-cf

src/content/docs/workers-ai/index.mdx

@@ -11,7 +11,7 @@ head:
 
 ---
 
-import { CardGrid, Description, Feature, LinkTitleCard, Plan, RelatedProduct, Render } from "~/components"
+import { CardGrid, Description, Feature, LinkTitleCard, Plan, RelatedProduct, Render, LinkButton, Flex } from "~/components"
 
 <Description>
 
@@ -24,6 +24,12 @@ Workers AI allows you to run machine learning models, on the Cloudflare network,
 
 With the launch of Workers AI, Cloudflare is rolling out GPUs to its global network. This enables you to build and deploy ambitious AI applications that run near your users, wherever they are.
 
+<div>
+  <LinkButton href="/workers-ai/get-started">Get started</LinkButton>
+  <LinkButton variant="secondary" icon="external" href="https://youtu.be/cK_leoJsBWY?si=4u6BIy_uBOZf9Ve8">Watch a Workers AI demo</LinkButton>
+</div>
+
+
 <Render file="custom_requirements" />
 
 <Render file="file_issues" />