gravitystorm/openstreetmap-carto — pull request #768 by polarbearing (2014-07-27 10:30:24+00:00)
Title: explain workflow in contribution guidelines

This should be helpful for new contributors to choose the "Fork & pull" model compared to the "Shared repository model" as explained on the github help site.

I added lines 3-12, the online editor apparently touched the last line.