Added video to how CF works

Author: dcpena

src/content/docs/fundamentals/concepts/how-cloudflare-works.mdx

@@ -1,15 +1,16 @@
 ---
 pcx_content_type: concept
-title: How Cloudflare CDN works
+title: How Cloudflare works
 sidebar:
   order: 2
 
 ---
 
-import { GlossaryTooltip } from "~/components"
+import { Stream, GlossaryTooltip } from "~/components"
 
 To optimize your website or web application, Cloudflare provides [DNS](https://www.cloudflare.com/learning/dns/what-is-dns/) and [CDN](https://www.cloudflare.com/learning/cdn/what-is-a-cdn/) services, so we can [reverse proxy](https://www.cloudflare.com/learning/cdn/glossary/reverse-proxy/) the web traffic to and from your domain.
 
+<Stream id="89f8aaf01e4cadd0c777eded7ef4cca2" title="Onboard your domain to Cloudflare" thumbnail="2s" />
 
 ## DNS explained