[w3c/webauthn] 4b6ac4: Use consistent identifier case

  Branch: refs/heads/acz
  Home:   https://github.com/w3c/webauthn
  Commit: 4b6ac44a30619dd1b4c81a34e0e07878b378d491
      https://github.com/w3c/webauthn/commit/4b6ac44a30619dd1b4c81a34e0e07878b378d491
  Author: Mike Jones <Michael.Jones@microsoft.com>
  Date:   2017-08-02 (Wed, 02 Aug 2017)

  Changed paths:
    M index.bs

  Log Message:
  -----------
  Use consistent identifier case