Cost of living for all metro areas which have light rail service, as per https://en.wikipedia.org/wiki/Light_rail_in_the_United_States
Cost of living for U.S. metropolitan districts which feature metro rail services, as listed on https://en.wikipedia.org/wiki/List_of_metro_systems
Merge pull request #7 from jayaddison/master

Cost of living for U.S. metropolitan districts which feature metro rail services