[perl6/specs] 5a4a8f: document polymod

[GitHub]

  Branch: refs/heads/master
  Home:   https://github.com/perl6/specs
  Commit: 5a4a8f7ecb5d41af258dd423244d437a094548bd
      
https://github.com/perl6/specs/commit/5a4a8f7ecb5d41af258dd423244d437a094548bd
  Author: TimToady <la...@wall.org>
  Date:   2015-02-14 (Sat, 14 Feb 2015)

  Changed paths:
    M S32-setting-library/Numeric.pod

  Log Message:
  -----------
  document polymod