[w3c/webauthn] 653203: Clarify that SafetyNet response uses base64url (#1...

  Branch: refs/heads/master
  Home:   https://github.com/w3c/webauthn
  Commit: 653203d077584e5def14a367da5538c9d51fc473
      https://github.com/w3c/webauthn/commit/653203d077584e5def14a367da5538c9d51fc473
  Author: Arnar Birgisson <arnarbi@gmail.com>
  Date:   2018-08-08 (Wed, 08 Aug 2018)

  Changed paths:
    M index.bs

  Log Message:
  -----------
  Clarify that SafetyNet response uses base64url (#1021)

Merging, per decision on 8-Aug-18 call



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