It’s so great that you want to contribute! The documentation here includes information about using and developing Deid, and they are hosted on Github, meaning that you can easily contribute via a pull request.
Initially (on OS X), you will need to setup Brew which is a package manager for OS X and Git. To install Brew and Git, run the following commands:
/usr/bin/ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)" brew install git
If you are on Debian/Ubuntu, then you can easily install git with
apt-get update && apt-get install -y git
Fork the repo
To contribute to the web based documentation, you should obtain a GitHub account and fork the Deid Documentation repository by clicking the fork button on the top right of the page. Once forked, you will want to clone the fork of the repo to your computer. Let’s say my GitHub username is meatball:
git clone https://github.com/meatball/deid cd deid/
Install a local Jekyll server
This step is required if you want to render your work locally before committing the changes. This is highly recommended to ensure that your changes will render properly and will be accepted.
brew install ruby gem install jekyll gem install bundler bundle install
Now you can see the site locally by running the server with jekyll:
bundle exec jekyll serve
This will make the site viewable at http://localhost:4000/Deid/.