[perl6/specs] b02fdf: fix minor typos

[email protected] (GitHub)
Newsgroups perl.perl6.language
Message-ID <55ca5bc5ddb19_a333ff76cf792b812816@hookshot-fe1-cp1-prd.iad.github.net.mail> 
  Branch: refs/heads/master
  Home:   https://github.com/perl6/specs
  Commit: b02fdfafca4555c3b86bdabc27f4518829e825b8
      https://github.com/perl6/specs/commit/b02fdfafca4555c3b86bdabc27f4518829e825b8
  Author: Steve Mynott <[email protected]>
  Date:   2015-08-11 (Tue, 11 Aug 2015)

  Changed paths:
    M S14-roles-and-parametric-types.pod
    M S99-glossary.pod

  Log Message:
  -----------
  fix minor typos
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