Add CONTRIBUTING.md and code of conduct

CODE_OF_CONDUCT.md

@@ -0,0 +1,73 @@
+# Contributor Covenant Code of Conduct
+
+## Our Pledge
+
+In the interest of fostering an open and welcoming environment, we as
+contributors and maintainers pledge to making participation in our project and
+our community a harassment-free experience for everyone, regardless of age, body
+size, disability, ethnicity, sex characteristics, gender identity and expression,
+level of experience, education, socio-economic status, nationality, personal
+appearance, race, religion, or sexual identity and orientation.
+
+## Our Standards
+
+Examples of behavior that contributes to creating a positive environment
+include:
+
+* Using welcoming and inclusive language
+* Being respectful of differing viewpoints and experiences
+* Gracefully accepting constructive criticism
+* Focusing on what is best for the community
+* Showing empathy towards other community members
+
+Examples of unacceptable behavior by participants include:
+
+* The use of sexualized language or imagery and unwelcome sexual attention or
+  advances
+* Trolling, insulting/derogatory comments, and personal or political attacks
+* Public or private harassment
+* Publishing others' private information, such as a physical or electronic
+  address, without explicit permission
+* Other conduct which could reasonably be considered inappropriate in a
+  professional setting
+
+## Our Responsibilities
+
+Project maintainers are responsible for clarifying the standards of acceptable
+behavior and are expected to take appropriate and fair corrective action in
+response to any instances of unacceptable behavior.
+
+Project maintainers have the right and responsibility to remove, edit, or
+reject comments, commits, code, wiki edits, issues, and other contributions
+that are not aligned to this Code of Conduct, or to ban temporarily or
+permanently any contributor for other behaviors that they deem inappropriate,
+threatening, offensive, or harmful.
+
+## Scope
+
+This Code of Conduct applies both within project spaces and in public spaces
+when an individual is representing the project or its community. Examples of
+representing a project or community include using an official project e-mail
+address, posting via an official social media account, or acting as an appointed
+representative at an online or offline event. Representation of a project may be
+further defined and clarified by project maintainers.
+
+## Enforcement
+
+Instances of abusive, harassing, or otherwise unacceptable behavior may be
+reported by contacting the project team at openmc@anl.gov. All complaints will
+be reviewed and investigated and will result in a response that is deemed
+necessary and appropriate to the circumstances. The project team is obligated to
+maintain confidentiality with regard to the reporter of an incident.  Further
+details of specific enforcement policies may be posted separately.
+
+Project maintainers who do not follow or enforce the Code of Conduct in good
+faith may face temporary or permanent repercussions as determined by other
+members of the project's leadership.
+
+## Attribution
+
+This Code of Conduct is adapted from the [Contributor Covenant][homepage], version 1.4,
+available at https://www.contributor-covenant.org/version/1/4/code-of-conduct.html
+
+[homepage]: https://www.contributor-covenant.org

CONTRIBUTING.md

@@ -0,0 +1,46 @@
+# Contributing to OpenMC
+
+Welcome, and thank you for considering contributing to OpenMC! We look forward
+to welcoming new members to the community and will do our best to help you get
+up to speed.
+
+## Code of Conduct
+
+Participants in the OpenMC project are expected to follow and uphold the [Code
+of Conduct](CODE_OF_CONDUCT.md). Please report any unacceptable behavior to
+openmc@anl.gov.
+
+## Resources
+
+- [GitHub Repository](https://github.com/mit-crpg/openmc)
+- [Documentation](http://openmc.readthedocs.io/en/latest)
+- [User's Mailing List](openmc-users@googlegroups.com)
+- [Developer's Mailing List](openmc-dev@googlegroups.com)
+- [Slack Community](https://openmc.slack.com/signup) (If you don't see your
+  domain listed, contact openmc@anl.gov)
+
+## How to Report Bugs
+
+OpenMC is hosted on GitHub and all bugs are reported and tracked through the
+[Issues](https://github.com/mit-crpg/openmc/issues) listed on GitHub.
+
+## How to Suggest Enhancements
+
+We welcome suggestions for new features or enhancements to the code and
+encourage you to submit them as Issues on GitHub. However, it's important to
+recognize that our development team is relatively small are does not have
+unlimited time to devote to new feature suggestions. If you are interested in
+working on the feature you are requesting, indicate so in the issue and the
+development team will be happy to discuss it.
+
+## How to Submit Changes
+
+All changes to OpenMC happen through pull requests. For a full overview of the
+process, see the developer's guide section on [Development
+Workflow](http://openmc.readthedocs.io/en/latest/devguide/workflow.html).
+
+## Code Style
+
+Before you run off to make changes to the code, please have a look at our [style
+guide](http://openmc.readthedocs.io/en/latest/devguide/styleguide.html), which
+is used when reviewing new contributions.