MAINT: update authors preparing for release

Update index.rst file listing authors, and AUTHORS file listing main
authors.

Author: matthew-brett

.mailmap

@@ -32,3 +32,6 @@ Chris Markiewicz <effigies@gmail.com> Christopher J. Markiewicz <effigies@bu.edu
 Chris Markiewicz <effigies@gmail.com> Christopher J. Markiewicz <effigies@gmail.com>
 Chris Markiewicz <effigies@gmail.com> Chris Johnson <effigies@bu.edu>
 Jaakko Leppäkangas <jaeilepp@student.jyu.fi> jaeilepp <jaeilepp@student.jyu.fi>
+Ariel Rokem <arokem@gmail.com> arokem <arokem@gmail.com>
+Oliver P. Hinds <ohinds@gmail.com> ohinds <ohinds@gmail.com>
+Marc-Alexandre Côté <marc.cote.19@gmail.com> Marc-Alexandre Cote <marc.cote.19@gmail.com>

AUTHOR

@@ -1,3 +1,7 @@
 Matthew Brett <matthew.brett@gmail.com>
 Michael Hanke <michael.hanke@gmail.com>
+Ben Cipollini <ben.cipollini@gmail.com>
+Marc-Alexandre Côté <marc.cote.19@gmail.com>
+Chris Markiewicz <effigies@gmail.com>
 Stephan Gerhard <connectome@unidesign.ch>
+Eric Larson <larson.eric.d@gmail.com>

doc/source/index.rst

@@ -27,9 +27,10 @@ discussions, release procedure and more.
 Authors and Contributors
 ========================
 
-The main authors of NiBabel are `Matthew Brett`_, `Michael Hanke`_ and `Stephan
-Gerhard`_.  The authors are grateful to the following people who have
-contributed code and discussion (in rough order of appearance):
+The main authors of NiBabel are `Matthew Brett`_, `Michael Hanke`_, `Ben
+Cipollini`_, Marc-Alexandre Côté, Chris Markiewicz, `Stephan Gerhard`_ and Eric
+Larson.  The authors are grateful to the following people who have contributed
+code and discussion (in rough order of appearance):
 
 * `Yaroslav O. Halchenko`_
 * Chris Burns
@@ -47,22 +48,29 @@ contributed code and discussion (in rough order of appearance):
 * Bago Amirbekian
 * Brendan Moloney
 * Félix C. Morency
-* Chris Markiewicz
 * JB Poline
-* Nolan Nichols
-* Nguyen, Ly
 * Basile Pinsard
-* Kevin S. Hahn
-* Eric Larson
-* Nikolaas N. Oosterhof
-* ohinds
-* Michiel Cottaar
 * Satrajit Ghosh
-* Demian Wassermann
+* Nolan Nichols
+* Nguyen, Ly
 * Philippe Gervais
+* Demian Wassermann
 * Justin Lecher
-* `Ben Cipollini`_
+* Oliver P. Hinds
+* Nikolaas N. Oosterhof
+* Kevin S. Hahn
+* Michiel Cottaar
+* Erik Kastman
+* Github user ``freec84``
+* Peter Fischer
 * Clemens C. C. Bauer
+* Samuel St-Jean
+* Gregory R. Lee
+* Eric M. Baker
+* Ariel Rokem
+* Marc-Alexandre Côté
+* Eleftherios Garyfallidis
+* Jaakko Leppäkangas
 
 License reprise
 ===============