[w3c/webauthn] d23f37: Adds authenticator attachement to credential optio...

  Branch: refs/heads/master
  Home:   https://github.com/w3c/webauthn
  Commit: d23f37ebb858a73d473a10c01a5a5cc6f7a71341
      https://github.com/w3c/webauthn/commit/d23f37ebb858a73d473a10c01a5a5cc6f7a71341
  Author: Alexei Czeskis <alexei@czeskis.com>
  Date:   2016-12-08 (Thu, 08 Dec 2016)

  Changed paths:
    M index.bs

  Log Message:
  -----------
  Adds authenticator attachement to credential options (#243)

* Adds authenticator attachement to credential options

Closes issue #213

* use Vijay's examples

* addressed Jeff's comments

* put back vijay's suggestion that got dropped

* addressed Jeff's comments

* closing div needed in dfn for Attachment. See #243

* editorial tweak as per Jeff's comments