[w3c/webauthn] c8c43e: Incorporating comments - 6

  Branch: refs/heads/akshay-sig-clarification
  Home:   https://github.com/w3c/webauthn
  Commit: c8c43e297120ba173f513f845135740984a680b8
      https://github.com/w3c/webauthn/commit/c8c43e297120ba173f513f845135740984a680b8
  Author: Akshay Kumar <akshayku@corp.microsoft.com>
  Date:   2018-02-20 (Tue, 20 Feb 2018)

  Changed paths:
    M index.bs

  Log Message:
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  Incorporating comments - 6