DOC add alfaro96 and lorentzenchr
<p>Guillaume Lemaitre</p>
</div>
<div>
+ <a href='https://github.com/lorentzenchr'><img src='https://avatars2.githubusercontent.com/u/15324633?v=4' class='avatar' /></a> <br />
+ <p>Christian Lorentzen</p>
+ </div>
+ <div>
<a href='https://github.com/jmetzen'><img src='https://avatars1.githubusercontent.com/u/1116263?v=4' class='avatar' /></a> <br />
<p>Jan Hendrik Metzen</p>
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