docs: update Cloudflare Pages deployment link (#10901)

Author: kakakakakku

website/docs/deployment.mdx

@@ -840,7 +840,7 @@ See [docs](https://docs.quantcdn.io/docs/cli/continuous-integration) and [blog](
 
 ## Deploying to Cloudflare Pages {#deploying-to-cloudflare-pages}
 
-[Cloudflare Pages](https://pages.cloudflare.com/) is a Jamstack platform for frontend developers to collaborate and deploy websites. Get started within a few minutes by following [this article](https://dev.to/apidev234/deploying-docusaurus-to-cloudflare-pages-565g).
+[Cloudflare Pages](https://pages.cloudflare.com/) is a Jamstack platform for frontend developers to collaborate and deploy websites. Get started within a few minutes by following [this page](https://developers.cloudflare.com/pages/framework-guides/deploy-a-docusaurus-site/).
 
 ## Deploying to Azure Static Web Apps {#deploying-to-azure-static-web-apps}