[perl6/specs] d4e09a: add missing comma in json example

[GitHub]

  Branch: refs/heads/master
  Home:   https://github.com/perl6/specs
  Commit: d4e09ac67006c983020966cd011f52b7aeb4f0a0
      
https://github.com/perl6/specs/commit/d4e09ac67006c983020966cd011f52b7aeb4f0a0
  Author: Tobias Leich <em...@froggs.de>
  Date:   2015-03-28 (Sat, 28 Mar 2015)

  Changed paths:
    M S22-package-format.pod

  Log Message:
  -----------
  add missing comma in json example