Update js_syntax output on overcommit article

Switched to native `jshint` binary; match output format.

Change-Id: I8b7390b4c89a4647913a43e3585581eac42a8148
Reviewed-on: https://gerrit.causes.com/23291
Tested-by: jenkins <jenkins@causes.com>
Reviewed-by: Joe Lencioni <joe.lencioni@causes.com>
Add python and coffee lint explanation

These were released today; mention them for completeness' sake.

Change-Id: Ie6b7542ee74c7af29ed8b3ea856cb962094f9cb5
Reviewed-on: https://gerrit.causes.com/23292
Tested-by: jenkins <jenkins@causes.com>
Reviewed-by: Joe Lencioni <joe.lencioni@causes.com>
Remove code backticks from h4s

These harmed readability and were unnecessary.

Change-Id: I4e976945bdb3bfb50a7961440788c4a5d91dbe61
Reviewed-on: https://gerrit.causes.com/23293
Tested-by: jenkins <jenkins@causes.com>
Reviewed-by: Joe Lencioni <joe.lencioni@causes.com>