Docs: Fix broken links (#54340)

Fix broken links picked up by crawl-analysis: https://vercel.slack.com/archives/C03S9JCH2Q5/p1692621216597749

docs/02-app/01-building-your-application/08-deploying/01-static-exports.mdx

@@ -288,7 +288,7 @@ Features that require a Node.js server, or dynamic logic that cannot be computed
 
 - [Dynamic Routes](/docs/app/building-your-application/routing/dynamic-routes) with `dynamicParams: true`
 - [Dynamic Routes](/docs/app/building-your-application/routing/dynamic-routes) without `generateStaticParams()`
-- [Route Handlers](/app/building-your-application/routing/route-handlers) that rely on Request
+- [Route Handlers](/docs/app/building-your-application/routing/route-handlers) that rely on Request
 - [Cookies](/docs/app/api-reference/functions/cookies)
 - [Rewrites](/docs/app/api-reference/next-config-js/rewrites)
 - [Redirects](/docs/app/api-reference/next-config-js/redirects)

docs/05-community/01-contribution-guide.mdx

@@ -66,7 +66,7 @@ Please let us know if you have any questions or need further assistance in your
 
 ## File Structure
 
-The docs use **file-system routing**. Each folder and files inside [`/docs`](/vercel/next.js/tree/canary/docs) represent a route segment. These segments are used to generate the URL paths, navigation, and breadcrumbs.
+The docs use **file-system routing**. Each folder and files inside [`/docs`](https://github.com/vercel/next.js/tree/canary/docs) represent a route segment. These segments are used to generate the URL paths, navigation, and breadcrumbs.
 
 The file structure reflects the navigation that you see on the site, and by default, navigation items are sorted alphabetically. However, we can change the order of the items by prepending a two-digit number (`00-`) to the folder or file name.