[docs] Fixed 404 links to Layouts RFC blog post (#39937)

Fixes broken links to Next.js Router and Layouts RFC blog post


## Documentation / Examples

- [x] Make sure the linting passes by running `pnpm lint`

docs/advanced-features/react-18/server-components.md

@@ -4,15 +4,15 @@ Server Components allow us to render React components on the server. This is fun
 
 ### Next Router and Layouts RFC
 
-We are currently implementing the [Next.js Router and Layouts RFC](/blog/layouts-rfc).
+We are currently implementing the [Next.js Router and Layouts RFC](https://nextjs.org/blog/layouts-rfc).
 
 The new Next.js router will be built on top of React 18 features, including React Server Components.
 
 One of the biggest proposed changes is that, by default, files inside a new `app` directory will be rendered on the server as React Server Components.
 
 This will allow you to automatically adopt React Server Components when migrating from `pages` to `app`.
 
-You can find more information on the [RFC](/blog/layouts-rfc) and we welcome your feedback on [Github Discussions](https://github.com/vercel/next.js/discussions/37136).
+You can find more information on the [RFC](https://nextjs.org/blog/layouts-rfc) and we welcome your feedback on [Github Discussions](https://github.com/vercel/next.js/discussions/37136).
 
 ### Server Components Conventions