Contributes

Peroxide follows Gitflow workflow. Don't need to much precise, but it's good to obey some simple rules.

1. Do not work on master branch directly.
2. Use features/<features_to_improve> branch mainly. For example, if you want to improve DataFrame then create features/dataframe on latest dev branch & create pull request to dev branch.
3. Test before push. cargo test --features <required_features> is wonderful.

Thanks for all contributions!