[w3c/payment-handler] (Editorial) Clarify validation expectation (#324)

closes #310


<!--
    This comment and the below content is programatically generated.
    You may add a comma-separated list of anchors you'd like a
    direct link to below (e.g. #idl-serializers, #idl-sequence):

    Don't remove this comment or modify anything below this line.
    If you don't want a preview generated for this pull request,
    just replace the whole of this comment's content by "no preview"
    and remove what's below.
-->
***
<a href="https://pr-preview.s3.amazonaws.com/w3c/payment-handler/pull/324.html" title="Last updated on Sep 19, 2018, 3:20 PM GMT (5168776)">Preview</a> | <a href="https://pr-preview.s3.amazonaws.com/w3c/payment-handler/324/270b211...5168776.html" title="Last updated on Sep 19, 2018, 3:20 PM GMT (5168776)">Diff</a>
You can view, comment on, or merge this pull request online at:

  https://github.com/w3c/payment-handler/pull/324

-- Commit Summary --

  * editorial to close 310

-- File Changes --

    M index.html (9)

-- Patch Links --

https://github.com/w3c/payment-handler/pull/324.patch
https://github.com/w3c/payment-handler/pull/324.diff

-- 
You are receiving this because you are subscribed to this thread.
Reply to this email directly or view it on GitHub:
https://github.com/w3c/payment-handler/pull/324