Updated contributors list

Author: clintongormley

Preface.asciidoc

@@ -287,12 +287,15 @@ Finally, we would like to thank our readers, some of whom we only know by
 their GitHub identities, who have taken the time to report problems, provide
 corrections, or suggest improvements:
 
-Adam Canady, Adam Gray, Alexander Reelsen, backer, Baptiste Cabarrou, Bart
-Vandewoestyne, Brian Wong, Chris Gilmore, Christian Burgas, Colin Goodheart-Smithe,
-Daniel Wiesmann, David Pilato, Duncan Angus Wilkie, Gavin Foo,
-geissbock, igal-getrailo, Japh, Jeremy Falling, J.R. Heard, Joe Fleming,
-Joshua Gourneau, jschneier, Jun Ohtani, klaplume, Kurt Hurtado, lashae, Lucian
-Precup, Lukáš Vlček, Martijn Dwars, Michael Bonfils, Michael Salmon, Michael
-Scharf , mitar, Nathan Peck, nobozo, Patrick Peschlow, Paul Schwarz, Pieter
-Coucke, Robert Muir, Ruslan Zavacky, sangharsh, Santiago Gaviria,
-submersibletoaster, Ulf, and Will Kahn-Greene.
+Adam Canady, Adam Gray, Alexander Kahn, Alexander Reelsen, ambroseludd,
+backer, Baptiste Cabarrou, Bart Vandewoestyne, Brian Wong, Chris Gilmore,
+Christian Burgas, Colin Goodheart-Smithe, Corey Wright,  Daniel Wiesmann,
+David Pilato, Duncan Angus Wilkie, Florian Hopf, Gavin Foo, geissbock, Gustavo
+Alberola, igal-getrailo, Jānis Peisenieks, Japh, Jeff Myers, Jeff Patti,
+Jeremy Falling, J.R. Heard, Joe Fleming, Joshua Gourneau, jschneier, Jun
+Ohtani, klaplume, Kurt Hurtado, lashae, Lucian Precup, Lukáš Vlček, Malibu
+Carl, Margirier Laurent, Martijn Dwars, Mehdy Amazigh, mhemani, Michael
+Bonfils, Michael Salmon, Michael Scharf , mitar, Mustafa K. Isik, Nathan Peck,
+nobozo, Patrick Peschlow, Paul Schwarz, Pieter Coucke, Robert Muir, Ruslan
+Zavacky, sangharsh, Santiago Gaviria, Scott Wilkerson,  submersibletoaster,
+Ulf, and Will Kahn-Greene.