This is the standard place for tooling.
Update src/dawn/node/README.md with the new paths, and drop inferred
arguments from the examples.
Change-Id: Ib944ca045366b81b8897d9548112a8889e097769
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/113643
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Commit-Queue: Ben Clayton <bclayton@google.com>