Next, <code>fork</code> and <code>clone</code> their repo. Create a <code>branch</code> for the issue you're fixing, make your changes, <code>add</code>, and <code>commit</code>. Then <code>push</code> your branch to your <code>fork</code>.

Finally, create a [https://help.github.com/articles/about-pull-requests/ Pull Request] for your change. In your Pull Request's description, make sure you use the pattern <code>Fix #...: <desc>...</code> to have GitHub automatically close the associated issue when your Pull Request is merged. For example, if you are working on Issue 14, you might say, <code>Fix #14: add md5 unit test</code>. Also include a useful discussion of what you've done, how to test it, etc.