Corrected video links and thumbnails

Author: dcpena

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

@@ -10,7 +10,7 @@ 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="02541340a96efc2f77950887a882ef60" title="Understand how Cloudflare works" thumbnail="https://pub-d9bf66e086fb4b639107aa52105b49dd.r2.dev/Understand%20how%20Cloudflare%20works.png" />
+<Stream id="89f8aaf01e4cadd0c777eded7ef4cca2" title="Onboard your domain to Cloudflare" thumbnail="https://pub-d9bf66e086fb4b639107aa52105b49dd.r2.dev/Onboard%20your%20website%20or%20app%20to%20Cloudflare.png" />
 
 ## DNS explained
 

src/content/partials/fundamentals/what-is-cloudflare.mdx

@@ -6,3 +6,5 @@
 Cloudflare is one of the world's largest [connectivity cloud networks](https://blog.cloudflare.com/welcome-to-connectivity-cloud). Today, anyone with an Internet presence can have faster and more secure websites and applications thanks to Cloudflare. This includes bloggers, businesses, and even non-profits.
 
 Millions of Internet properties are on Cloudflare, and our network is growing by tens of thousands each day. Cloudflare powers Internet requests for millions of websites and serves 55 million HTTP requests per second on average.
+
+<Stream id="02541340a96efc2f77950887a882ef60" title="Understand how Cloudflare works" thumbnail="https://pub-d9bf66e086fb4b639107aa52105b49dd.r2.dev/Understand%20how%20Cloudflare%20works.png" />