[w3c/webauthn] 973a19: spell-out enums values. Give better eplxanation o...

  Branch: refs/heads/authnr-sel-keyprotection
  Home:   https://github.com/w3c/webauthn
  Commit: 973a199861b02dd802a3d6d75016588180eac64e
      https://github.com/w3c/webauthn/commit/973a199861b02dd802a3d6d75016588180eac64e
  Author: rlin1 <rolf@noknok.com>
  Date:   2017-05-30 (Tue, 30 May 2017)

  Changed paths:
    M index.bs

  Log Message:
  -----------
  spell-out enums values.  Give better eplxanation on when to use which enum