README: expand board/project-specific usage to [2000,4999]

Some partners (COS) are interested in having a few more users for
their own use.  Give them a little more head room.

BUG=None
TEST=None

Change-Id: I99dc5e23540d7e7f9e2cfd9207568b2b38129bd5
Reviewed-on: https://chromium-review.googlesource.com/1194706
Commit-Ready: Mike Frysinger <vapier@chromium.org>
Tested-by: Mike Frysinger <vapier@chromium.org>
Reviewed-by: Jorge Lucangeli Obes <jorgelo@chromium.org>
Reviewed-by: Chirantan Ekbote <chirantan@chromium.org>
1 file changed
tree: 4415289a396e6dd2a4dfe4eac71026a035979606
  1. PRESUBMIT.cfg
  2. eclass/
  3. metadata/
  4. profiles/