Clarify base64url alphabet.

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Daira Hopwood 2020-09-24 14:09:45 +01:00 committed by GitHub
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@ -100,7 +100,9 @@ URI Syntax:
Here, ``ALPHA``, ``unreserved`` and ``pct-encoded`` are as defined in
[#RFC3986]_. "base58" is defined as in [#base58check]_. "base64url" is defined
as in [#base64url]_ with padding omitted.
as in [#base64url]_ with padding omitted. (Note that this uses a different
alphabet to the usual base64; the values 62 and 63 in the alphabet are encoded
as ``-`` and ``_`` respectively.)
A ZIP-321 URI represents a request for the construction of a transaction having
one or more *payments*. In the case that only a single payment is being