Update authors

AUTHORS

 List of HackMD contributors.
 
+bananaapple
 Bartlomiej Szala
+Colin Maudry
 Dmytro Kytsmen
 Fabien Meghazi
+Florian Rhiem
 Ikumi Shimizu
 ivanorsolic
 Jason Croft
 Jannik Lorenz
+James Stephenson
 Jordan Matelsky
+Kenji Doi
+Lars Kajes
 Lapinot
 Laura Kyle
 Marcelo Alencar
@@ -17,10 +23,13 @@ Max Wu
 Ömer Erdinç Yağmurlu
 p0v1n0m
 Pablo Guerrero
+paraschadha2052
 Peter Dave Hello
 Qubo
 Sergio Valverde
+Tom Wyckhuys
 Yukai Huang
 Zacharias Traianos
 Zankio
+Xavier
 葉家郡
\ No newline at end of file