Update wai-new.md

Author: shawna-slh

messaging/wai-new.md

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-WAI News:
-FOR REVIEW: *W3C Alternative and Augmented Communication (AAC) Symbol Registry*
+Registry First Public Draft: W3C Alternative and Augmented Communication (AAC) Symbol Registry
 
-The Accessible Platform Architectures (APA) WAI-Adapt Task Force (WAI-Adapt) and Blissymbolics Communication International (BCI) have jointly published the first public Draft Registry of the [W3C Alternative and Augmented Communication (AAC) Symbol Registry](https://www.w3.org/TR/aac-registry/). This Registry provides a mapping between concepts expressed in standard text and corresponding symbols in major Augmentative and Alternative Communication (AAC) symbol sets in use today. The purpose of this registry is to support Augmentative and Alternative Communication (AAC) symbols in web content.  Please send comments by Friday 13 January 2023.
+W3C and Blissymbolics Communication International (BCI) have jointly published the First Public Draft Registry of the <a href="https://www.w3.org/TR/aac-registry/">W3C Alternative and Augmented Communication (AAC) Symbol Registrya>. This registry provides a mapping between concepts expressed in standard text and corresponding symbols in major augmentative and alternative communication (AAC) symbol sets in use today. The purpose of this registry is to support augmentative and alternative communication (AAC) symbols in web content. Please send comments by 13 January 2023.