[Extensions] Fix the link to _behavior_features.json from _features.md

[Extensions] Fix the link to _behavior_features.json from _features.md

The docs used to point to a wrong location of the
_behavior_features.json file.

BUG=639162
Review-Url: https://codereview.chromium.org/2857573002
Cr-Commit-Position: refs/heads/master@{#473680}
Committed: https://chromium.googlesource.com/chromium/src/+/08b41b09d06d975f92f4d7e5cadfcfc86d04fdde

[emaxx, 2017-05-02 12:47:57]

The CQ bit was checked by emaxx@chromium.org to run a CQ dry run

[commit-bot: I haz the power, 2017-05-02 12:48:09]

Dry run: CQ is trying da patch.

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

[emaxx, 2017-05-02 12:48:50]

emaxx@chromium.org changed reviewers:
+ mkearney@chromium.org

[emaxx, 2017-05-02 12:48:50]

mkearney@: PTAL.

[commit-bot: I haz the power, 2017-05-02 13:00:17]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2017-05-02 13:00:18]

Dry run: This issue passed the CQ dry run.

[emaxx, 2017-05-08 14:37:39]

On 2017/05/02 12:48:50, emaxx wrote:
> mkearney@: PTAL.

ping.

[emaxx, 2017-05-22 20:23:00]

emaxx@chromium.org changed reviewers:
+ rockot@chromium.org

[emaxx, 2017-05-22 20:23:01]

+rockot@: Ken, PTAL (Meggin is not responding).

[Ken Rockot(use gerrit already), 2017-05-22 20:23:37]

lgtm

[emaxx, 2017-05-22 20:24:46]

The CQ bit was checked by emaxx@chromium.org

[commit-bot: I haz the power, 2017-05-22 20:25:12]

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, 2017-05-22 20:38:48]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1495484686291010, "parent_rev":
"0c4988c82aff00b563b13d66fe10a5e8df9236f4", "commit_rev":
"08b41b09d06d975f92f4d7e5cadfcfc86d04fdde"}

[commit-bot: I haz the power, 2017-05-22 20:39:02]

Description was changed from

==========
[Extensions] Fix the link to _behavior_features.json from _features.md

The docs used to point to a wrong location of the
_behavior_features.json file.

BUG=639162
==========

to

==========
[Extensions] Fix the link to _behavior_features.json from _features.md

The docs used to point to a wrong location of the
_behavior_features.json file.

BUG=639162

Review-Url: https://codereview.chromium.org/2857573002
Cr-Commit-Position: refs/heads/master@{#473680}
Committed:
https://chromium.googlesource.com/chromium/src/+/08b41b09d06d975f92f4d7e5cadf...
==========

[commit-bot: I haz the power, 2017-05-22 20:39:03]

Committed patchset #1 (id:1) as
https://chromium.googlesource.com/chromium/src/+/08b41b09d06d975f92f4d7e5cadf...