[a11yapi] Update README.md (#26)

added links
You can view, comment on, or merge this pull request online at:

  https://github.com/WICG/a11yapi/pull/26

-- Commit Summary --

  * Update README.md

-- File Changes --

    M README.md (2)

-- Patch Links --

https://github.com/WICG/a11yapi/pull/26.patch
https://github.com/WICG/a11yapi/pull/26.diff

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Reply to this email directly or view it on GitHub:
https://github.com/WICG/a11yapi/pull/26