Contributing

0. Create an issue in GitHub to make sure your PR will be accepted.
1. Fork it
2. Create your feature branch (`git checkout -b my-new-feature`)
3. Write tests for your changes
4. Make your changes
5. Document your changes in the `docs` folder
6. Commit your changes (`git commit -am 'Add some feature'`)
7. Push to the branch (`git push origin my-new-feature`)
8. Create new Pull Request