Add direction tagging to intro graph for walkthrough
Add direction tagging to intro graph for walkthrough

openstreetmap/iD,AndreasHae/iD,openstreetmap/iD,mapmeld/iD,mapmeld/iD,mapmeld/iD,kartta-labs/iD,bagage/iD,ngageoint/hootenanny-ui,bagage/iD,bagage/iD,ngageoint/hootenanny-ui,AndreasHae/iD,kartta-labs/iD,AndreasHae/iD,digidem/iD,morray/iD,kartta-labs/iD,morray/iD,openstreetmap/iD,ngageoint/hootenanny-ui,digidem/iD