Update README.md

Added johnvick, same as in master branch.

README.md

@@ -28,24 +28,26 @@ Creator, programmer and project lead of DietPi.
 * Daniel Knight (Fourdee)
 
 Current contributors:
-* K-Plan - Joined 01/01/2016
+* JohnVick - Joined 08/06/2016 - 
+DietPi forum co-administrator, including managment, support, testing and valuable feedback
+* K-Plan - Joined 01/01/2016 -
 Contributions to the DietPi in general, including In-depth testing, bug finding and valuable feedback. Forum moderator.
-* ZombieVirus - Joined 20/03/2016
+* ZombieVirus - Joined 20/03/2016 -
 DietPi forum moderator and version history maintainer on forums.
 
 Collaborations:
-* DietPi + AmiBerry 02/09/2016
+* DietPi + AmiBerry 02/09/2016 -
 Joint venture to bring you the ultimate Amiga experience on your SBC, running lightweight and optmized DietPi at its core.
 https://github.com/Fourdee/DietPi/issues/474
 
 Previous/inactive contributors:
-* Rhkean - Joined 01/03/2016
+* Rhkean - Joined 01/03/2016 -
 Contributions to the DietPi in general, including sourcecode, testing, new devices. Forum moderator.
-* Pilovali - Joined 10/10/2015
+* Pilovali - Joined 10/10/2015 -
 Provided DietPi.com web hosting for 1 year until April 17th 2016, forum moderator, testing, bug reporting.
-* xenfomation - Joined 01/04/2016
+* xenfomation - Joined 01/04/2016 -
 Contributions to the DietPi in general, including sourcecode, virtualBox image creation/conversion.
-* AWL29 - Joined 01/10/2016
+* AWL29 - Joined 01/10/2016 -
 Created the DietPi image for NanoPi M3/T3.
 
 Honourable mentions/thanks: