SC copyediting

Hi Lisa and All,

I copyedited the accessible authentication SC<https://github.com/w3c/coga/blob/master/extension/accessible-authentication.html> and the safety SC<https://github.com/w3c/coga/blob/master/extension/safety.html>. In the former, the only significant change I made is that I replaced:

"Many user authentication methods rely upon trying to differentiate between a human, and software that tries to hijack a user's identity (robots)."

with

"Many user authentication methods rely upon trying to differentiate between a human, and software (bots) that try to pose as a human."

John

John Rochford<http://profiles.umassmed.edu/profiles/display/132901>
UMass Medical School/E.K. Shriver Center
Director, INDEX Program
Instructor, Family Medicine & Community Health
www.DisabilityInfo.org
Twitter: @ClearHelper<https://twitter.com/clearhelper>

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