[Retros] Add units: 13th update

[Alain BROBECKER]

Dear retro friends:

As usual it can be found here:
http://abrobecker.free.fr/chess/addunits.pdf

modified are N1RAl, N1RAl', N2Al

Best regards, Alain

Alain Brobecker (abrobecker at yahoo.com) |_  _  _ |_
http://abrobecker.free.fr/             |_)(_|(_|| ) of  Arm's Tech