message: docs: update docs with support for optional catch all
diff: @@ -79,7 +79,7 @@ Is there a feature that you want but is not yet supported? Please open a [new is
  - [x] [Statically generate a set of routes from dynamic sources](https://nextjs.org/docs/basic-features/data-fetching#getstaticpaths-static-generation) via `getStaticPaths` (Note: known conflict with public files if you use this with a root dynamic route and `fallback: false` is not supported in 1.17. Please try the latest 1.18 alpha in case of any issues).
  - [x] [Base path](https://nextjs.org/docs/api-reference/next.config.js/basepath)
  - [x] [Preview mode](https://nextjs.org/docs/advanced-features/preview-mode)
  -- [ ] [Optional catch all routes](https://nextjs.org/docs/routing/dynamic-routes#optional-catch-all-routes)
  +- [x] [Optional catch all routes](https://nextjs.org/docs/routing/dynamic-routes#optional-catch-all-routes)
  - [x] [Redirects](https://nextjs.org/docs/api-reference/next.config.js/redirects). In latest alpha release (caveat: every route should be able to redirect except `_next/static/*` and `static/*`, since those cache behaviors do not have Lambda handlers attached to them). See [RFC](https://github.com/serverless-nextjs/serverless-next.js/issues/587) for updates.
  - [x] [Rewrites](https://nextjs.org/docs/api-reference/next.config.js/rewrites). In latest alpha release (caveats: every route should be able to rewrite except `_next/static/*` and `static/*`, since those cache behaviors do not have Lambda handlers attached to them. [External URL rewrites](https://nextjs.org/docs/api-reference/next.config.js/rewrites#rewriting-to-an-external-url) are not yet implemented). See [RFC](https://github.com/serverless-nextjs/serverless-next.js/issues/587) for updates.
  - [x] [Custom Headers](https://nextjs.org/docs/api-reference/next.config.js/headers). In latest alpha release (caveats: every route should be able to have custom headers except `_next/static/*` and `static/*`, since those cache behaviors do not have Lambda handlers attached to them. You also need to specify the S3 key as the source when redirecting any path mapped to an S3 file (see [PR](https://github.com/serverless-nextjs/serverless-next.js/pull/662) for more details). See [RFC](https://github.com/serverless-nextjs/serverless-next.js/issues/587) for updates.
  