git: openjdk/jdk-sandbox: classfile-api-dev-branch: fixed doc building and web reference

[Adam Sotona]

Changeset: 1334be9f
Author:    Adam Sotona <asotona at openjdk.org>
Date:      2023-02-06 11:27:22 +0000
URL:       https://git.openjdk.org/jdk-sandbox/commit/1334be9fc7803c5d8b32eb65fe14ec1482d72a05

fixed doc building and web reference

! README.md
! make/Docs.gmk