Flarnie Marchan authored
Summary: In the past Facebook didn't promote including a Code of Conduct when creating new projects, and many projects skipped this important document. Let's fix it. :) **why make this change?:** Facebook Open Source provides a Code of Conduct statement for all projects to follow, to promote a welcoming and safe open source community. Exposing the COC via a separate markdown file is a standard being promoted by Github via the Community Profile in order to meet their Open Source Guide's recommended community standards. As you can see, adding this file will improve [the rocksdb community profile](https://github.com/facebook/rocksdb/community) checklist and increase the visibility of our COC. **test plan:** Viewing it on my branch - <img width="1008" alt="screen shot 2017-12-03 at 5 05 45 pm" src="https://user-images.githubusercontent.com/1114467/33532198-66012a56-d84c-11e7-8fab-29ed410bd600.png"> <img width="1015" alt="screen shot 2017-12-03 at 5 05 59 pm" src="https://user-images.gi...1b0c58d7
After you've reviewed these contribution guidelines, you'll be all set to contribute to this project.