V1.1 update

Updated document to reflect the board design. Also updated rules about treasure and cube placement to address unintended ability to "lock" placed treasures away from access to the rest of the board. Now there is a "base road" around the outside of the board, and a rule about being able to trace a path to a treasure when you place it.

Playtesting and refinement continues! There may be some variants or changes to scoring in the near future.