[w3c/webauthn] 68d8cb: Fix reference to U2F user public key format

  Branch: refs/heads/issue-857-u2f-attestation-verification
  Home:   https://github.com/w3c/webauthn
  Commit: 68d8cb8a673ed46f0d4fc5b11a97a528b44e76a3
      https://github.com/w3c/webauthn/commit/68d8cb8a673ed46f0d4fc5b11a97a528b44e76a3
  Author: Emil Lundberg <emil@yubico.com>
  Date:   2018-04-04 (Wed, 04 Apr 2018)

  Changed paths:
    M index.bs

  Log Message:
  -----------
  Fix reference to U2F user public key format


  Commit: c137565f1d042c5a65606e36d543daf9d7642643
      https://github.com/w3c/webauthn/commit/c137565f1d042c5a65606e36d543daf9d7642643
  Author: Emil Lundberg <emil@yubico.com>
  Date:   2018-04-04 (Wed, 04 Apr 2018)

  Changed paths:
    M index.bs

  Log Message:
  -----------
  Improve U2F key reformatting instructions as suggested by @apowers

See https://github.com/w3c/webauthn/issues/857


Compare: https://github.com/w3c/webauthn/compare/b3411467799a...c137565f1d04