Updated title & added video (#27100)

Author: dcpena

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

@@ -1,6 +1,6 @@
 ---
 pcx_content_type: concept
-title: How Cloudflare works
+title: How Cloudflare DNS works
 sidebar:
   order: 2
 

src/content/docs/fundamentals/manage-domains/add-site.mdx

@@ -5,7 +5,7 @@ description: >-
   Learn how to connect the domain to Cloudflare, even if you purchased your domain name from another provider.
 ---
 
-import { DashButton, GlossaryTooltip, Render } from "~/components"
+import { DashButton, GlossaryTooltip, Render, Stream } from "~/components"
 
 If you purchased your domain from a different provider, you can still connect the domain to Cloudflare. After you connect your domain to Cloudflare, Cloudflare will act as the [reverse proxy](/fundamentals/concepts/how-cloudflare-works/#cloudflare-as-a-reverse-proxy) and [DNS provider](/fundamentals/concepts/how-cloudflare-works/#cloudflare-as-a-dns-provider) for your site.
 
@@ -15,6 +15,8 @@ The information below applies to a [full DNS setup](/dns/zone-setups/full-setup)
 To use Cloudflare as a reverse proxy but maintain your DNS provider, refer to [partial setup](/dns/zone-setups/partial-setup/). To use one or more DNS providers, refer to or [DNS Zone transfers](/dns/zone-setups/zone-transfers/).
 :::
 
+<Stream id="89f8aaf01e4cadd0c777eded7ef4cca2" title="Onboard your domain to Cloudflare" thumbnail="https://pub-d9bf66e086fb4b639107aa52105b49dd.r2.dev/Onboard%20your%20website%20or%20app%20to%20Cloudflare.png" />
+
 ## Prerequisites
 
 [Disable DNSSEC](/dns/dnssec/#disable-dnssec) at the registrar where you purchased your domain name to avoid connectivity errors when you change your nameservers.