Create CONTRIBUTING.md
Create CONTRIBUTING.md
zanker/protobuf,ruby-protobuf/protobuf,localshred/protobuf,lookout/protobuffy,localshred/protobuf,quixoten/protobuf,zanker/protobuf,ruby-protobuf/protobuf,brianstien/protobuf,brianstien/protobuf,film42/protobuf,lookout/protobuffy,film42/protobuf,quixoten/protobuf