README: convert to markdown

This makes it render in gitiles automatically.

BUG=None
TEST=read the file in gitiles

Change-Id: I615121e00279af88553d1c9c259d9c7e4f808e27
Reviewed-on: https://chromium-review.googlesource.com/395726
Reviewed-by: Luis Hector Chavez <lhchavez@google.com>
Commit-Queue: Mike Frysinger <vapier@chromium.org>
Tested-by: Mike Frysinger <vapier@chromium.org>
2 files changed
tree: 4e611b63b010c72d7b5fda8a2b36cf40f2c276f7
  1. eclass/
  2. metadata/
  3. profiles/
  4. PRESUBMIT.cfg