add dock 2

A user of the OSM-based Scout app reported the following possible map error: "Cannot go left on rosewood off of Rossmore"

More information is available at: http://scoutosm.com/notes/5a1e292b-8a93-4fac-aa3a-c59bc6f371af/

Comments on this note are unlikely to be seen by the actual reporter of the error, but will be reviewed by the Scout team.

For more information about Scout, visit http://scout.me/osm