[w3c/webauthn] 5f4f3e: Fix attestation types supported for each format

  Branch: refs/heads/master
  Home:   https://github.com/w3c/webauthn
  Commit: 5f4f3e64ae77843d50f85b2f5b632a47f0088c00
      https://github.com/w3c/webauthn/commit/5f4f3e64ae77843d50f85b2f5b632a47f0088c00
  Author: J.C. Jones <jc@mozilla.com>
  Date:   2017-11-09 (Thu, 09 Nov 2017)

  Changed paths:
    M index.bs

  Log Message:
  -----------
  Fix attestation types supported for each format