quests"></a></h2>
<p>Requirements for making a pull request:</p>
<ul><li>Some knowledge of <a href="">git</a>
</li>
<li>Some knowledge of <a href="">GitHub</a>
</li>
</ul><p>Read more about pull requests on GitHub at <a href="https://help.github.com/articles/using-pull-requests/" class="external-link">https://help.github.com/articles/using-pull-requests/</a>. If you haven’t done this before, Hadley Wickham provides a nice overview of git (<a href="http://r-pkgs.had.co.nz/git.html" class="external-link uri