RFC: Suspense in React 18 (#213)

* RFC: Suspense in React 18

* Move the note up

* Update text/0000-suspense-in-react-18.md

Co-authored-by: Sebastian Silbermann <silbermann.sebastian@gmail.com>

* Update text/0000-suspense-in-react-18.md

Co-authored-by: Sebastian Silbermann <silbermann.sebastian@gmail.com>

* fix example

* Update text/0000-suspense-in-react-18.md

Co-authored-by: Steven Liao <steven.liaouey@gmail.com>

* Fix indent

* Update and rename 0000-suspense-in-react-18.md to 0213-suspense-in-react-18.md

Co-authored-by: Sebastian Silbermann <silbermann.sebastian@gmail.com>
Co-authored-by: Steven Liao <steven.liaouey@gmail.com>