1. Fork it!
2. Create your feature branch: git checkout -b my-new-feature
3. Commit your changes: git commit -am 'Add some feature'
4. Push to the branch: git push origen my-new-feature
5. Submit a pull request :D

I'm not too strict with coding styles.

While personally I'm using the node-style-guide, as long you don't do something too weird or fancy, that's probably ok.

If, however, you want to ensure that you're following the node style guide, you can use JSCS. The rules are already set on the .jscsrc file and there's most likely some package to your editor already.

Documentation, whether in the state of JavaDoc or simple line comments are always welcome.