[perl6/specs] 4d7ca4: Elaborate on "on demand" and "live" Supply

[GitHub]

  Branch: refs/heads/master
  Home:   https://github.com/perl6/specs
  Commit: 4d7ca45c081cb7c29ea9e82c4180672dc6df2da4
      
https://github.com/perl6/specs/commit/4d7ca45c081cb7c29ea9e82c4180672dc6df2da4
  Author: Elizabeth Mattijsen <l...@dijkmat.nl>
  Date:   2014-04-16 (Wed, 16 Apr 2014)

  Changed paths:
    M S17-concurrency.pod

  Log Message:
  -----------
  Elaborate on "on demand" and "live" Supply