doc: fix --experimental-wasm-modules text location

The text for --experimental-wasm-modules had drifted to under the
--force-context-aware text. This commit moves it back to the
proper location.

PR-URL: https://github.com/nodejs/node/pull/36220


Reviewed-By: Richard Lau <rlau@redhat.com>
Reviewed-By: Gus Caplan <me@gus.host>
Reviewed-By: Juan José Arboleda <soyjuanarbol@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>