[whatwg/encoding] The concept of "output encoding" is not described anywhere (Issue #291)

Currently a paragraph about it gives no idea what is "output encoding" and why it is needed:
https://github.com/whatwg/encoding/blob/4f549cd26fd5f6a8f8bd8fc3fede519515cdea4f/encoding.bs#L733-L746

It would be good to describe what it is and what problems it solves.

-- 
Reply to this email directly or view it on GitHub:
https://github.com/whatwg/encoding/issues/291
You are receiving this because you are subscribed to this thread.

Message ID: <whatwg/encoding/issues/291@github.com>