Update gsubtreed docs with more details.

Update gsubtreed docs with more details.

Following up on my own experience of setting one up.

BUG=None
R=dnj@chromium.org, iannucci@chromium.org

Committed: https://chromium.googlesource.com/infra/infra/+/35179679cdc66877a6cf3b934488c1f78a6fbe46

[Sergey Berezin, 2016-07-15 18:20:56]

PTAL.

Preview: https://goto.google.com/kanjib

[dnj (Google), 2016-07-15 18:51:36]

dnj@google.com changed reviewers:
+ dnj@google.com

[dnj (Google), 2016-07-15 18:51:36]

lgtm

[Sergey Berezin, 2016-07-15 18:52:56]

The CQ bit was checked by sergeyberezin@chromium.org

[commit-bot: I haz the power, 2016-07-15 18:53:05]

CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[commit-bot: I haz the power, 2016-07-15 19:09:21]

Description was changed from

==========
Update gsubtreed docs with more details.

Following up on my own experience of setting one up.

BUG=None
R=dnj@chromium.org, iannucci@chromium.org
==========

to

==========
Update gsubtreed docs with more details.

Following up on my own experience of setting one up.

BUG=None
R=dnj@chromium.org, iannucci@chromium.org

Committed:
https://chromium.googlesource.com/infra/infra/+/35179679cdc66877a6cf3b934488c...
==========

[commit-bot: I haz the power, 2016-07-15 19:09:21]

Committed patchset #1 (id:1) as
https://chromium.googlesource.com/infra/infra/+/35179679cdc66877a6cf3b934488c...