[push-api] Making cardinality clear (#148)

We've had questions about this.  I think that this is the right answer.
You can view, comment on, or merge this pull request online at:

  https://github.com/w3c/push-api/pull/148

-- Commit Summary --

  * Making cardinality clear

-- File Changes --

    M index.html (5)

-- Patch Links --

https://github.com/w3c/push-api/pull/148.patch
https://github.com/w3c/push-api/pull/148.diff

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Reply to this email directly or view it on GitHub:
https://github.com/w3c/push-api/pull/148