[i18n-drafts] Update Addison's email address (#396)

xfq has just created a new issue for https://github.com/w3c/i18n-drafts:

== Update Addison's email address ==
We should update @aphillips's email address at https://www.w3.org/International/i18n-drafts/nav/about#contacts (and other places).

Please view or discuss this issue at https://github.com/w3c/i18n-drafts/issues/396 using your GitHub account


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