Update cdn-links.html (#2957)

link to next article is wrong. It should be release-channels.html, not hello-world.html

Author: AreRex14

content/docs/cdn-links.md

@@ -3,7 +3,7 @@ id: cdn-links
 title: CDN Links
 permalink: docs/cdn-links.html
 prev: create-a-new-react-app.html
-next: hello-world.html
+next: release-channels.html
 ---
 
 Both React and ReactDOM are available over a CDN.