add instructions for contributing to this project

CONTRIBUTING.md

@@ -0,0 +1,28 @@
+# Contributing
+
+I welcome and love pull requests from everyone. By participating in this project, you agree to abide by the [code of conduct].
+
+[code of conduct]: http://todogroup.org/opencodeofconduct/#EthicalWeb/[email protected]
+
+Fork, clone the repo, and make your change:
+
+```
+git clone [email protected]:your-username/ethical-web-dev.git
+```
+
+If you'd like to be added as a contributor to this project, update the [humans.txt][humans] file.
+
+[humans]: https://github.com/ascott1/ethicalweb.org/blob/master/humans.txt
+
+Push to your fork and [submit a pull request][pr].
+
+[pr]: https://github.com/ascott1/ethicalweb.org/compare/
+
+At this point you're waiting on me. I try to comment on pull requests
+within three days (and, typically, one business day). I may suggest
+some changes, improvements, or alternatives.
+
+By contributing to this repo you acknowledge that:
+
+1. Your contribution may be published in the final O'Reilly version of the title, for which you will receive credit in the book but no additional compensation.
+2. Your contribution may also be published on the ethicalweb.org site.

README.md

@@ -59,3 +59,16 @@ For each title I will be donating a percentage (roughly 20% after taxes) of my p
 - Title 2: [World Wide Web Foundation](http://webfoundation.org/)
 - Title 3: [Electronic Freedom Foundation](https://www.eff.org/)
 - Title 4: [Mozilla](https://www.mozilla.org/en-US/)
+
+## Contributing
+
+I really appreciate feedback and contributions to this project.
+
+For feedback, please [create an issue](https://github.com/ascott1/ethical-web-dev/issues) or you can email me directly at [[email protected]](mailto:[email protected]).
+
+If you are interested in contributing, please read the [CONTRIBUTING.md](https://github.com/ascott1/ethical-web-dev/blob/master/CONTRIBUTING.md) file for more details.
+
+### Code of Conduct
+
+This project adheres to the [Open Code of Conduct][code-of-conduct]. By participating, you are expected to honor this code.
+[code-of-conduct]: http://todogroup.org/opencodeofconduct/#EthicalWeb/[email protected]

humans.txt

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+Ethical Web Development is a project by:
+
+Adam Scott
+  - adamscott.website
+  - twitter.com/adamdscott
+
+Contributors to the ethicalweb.org site can be found at https://ethicalweb.org/humans.txt
+
+Additional contributions and feedback have been provided by: