[w3c/webauthn] c5b321: Clarify attestation model vs. attestation type

  Branch: refs/heads/vijaybh/lots-of-fpwd-issues
  Home:   https://github.com/w3c/webauthn
  Commit: c5b3217cdbe0c002b8bb59914ab06e48daa1bcba
      https://github.com/w3c/webauthn/commit/c5b3217cdbe0c002b8bb59914ab06e48daa1bcba
  Author: Vijay Bharadwaj <vijaybh@users.noreply.github.com>
  Date:   2016-05-06 (Fri, 06 May 2016)

  Changed paths:
    M index.src.html

  Log Message:
  -----------
  Clarify attestation model vs. attestation type

Fixes #27, #28