Updated contributing guide to reflect the current best practices on the master branch
Updated contributing guide to reflect the current best practices on the master branch

kay-kim/mongo-java-driver,rozza/mongo-java-driver,jsonking/mongo-java-driver,PSCGroup/mongo-java-driver,jsonking/mongo-java-driver,jyemin/mongo-java-driver,jyemin/mongo-java-driver,rozza/mongo-java-driver