git: openjdk/jdk-sandbox: classfile-api-branch: Update README.md

[duke]

Changeset: 02bf8b41
Author:    Adam Sotona <asotona at users.noreply.github.com>
Committer: GitHub <noreply at github.com>
Date:      2022-06-14 11:02:57 +0000
URL:       https://git.openjdk.org/jdk-sandbox/commit/02bf8b4191fab743ce6893861137e86a90b6e6a6

Update README.md


! README.md