ssml-check/CONTRIBUTING.md

Check for valid SSML

# Contributing
We love your input! We want to make contributing to this project as easy and transparent as possible, whether it's:

- Reporting a bug
- Discussing the current state of the code
- Submitting a fix
- Proposing new features

When contributing to this repository, please first discuss the change you wish to make by raising an issue or sending an e-mail with to the owners of this repository.

## Pull Request Process

1. Fork the repo and create your branch from `master`.
2. If you've added code that should be tested, add tests and ensure the full test suite passes.
3. Use 2 spaces for indentation rather than tabs
4. If applicable, update the README.md with details of changes to the interface or behavior