ACTION-2023: Make changes to the introduction regarding this release of the graphics module and future releases

Changed introduction to explain what the Graphics Module was trying to do at this point. Basic text provided by Rich in the 27 April meeting. Made the text a list item in the list of goals as it fit better there than sandwiched between the two sentences in the paragraph following the list.

Added to list of goals.

<li>Work in harmony with SVG 2 and ARIA 1.1 to get consistent working accessibility infrastructure, on par with <abbr title="Accessible Rich Internet Applications">WAI-ARIA</abbr> and HTML 5.1, across all the major browsers.</li>


Now reads,

This specification is a modular extension of WAI-ARIA designed to support graphics. The goals of this specification include:

Expanding [WAI-ARIA] to produce semantic extensions to support structured graphics such as charts, graphs, maps, technical drawings and scientific diagrams. It has applicability to both Scalable Vector Graphics as well as HTML5 Canvas.
Align with a new governance model for modularization and extensions to WAI-ARIA.
Provide structural semantics extensions that will support both assistive technologies and enable semantic navigation, alternative styling, and interactivity support.
Work in harmony with SVG 2 and ARIA 1.1 to get consistent working accessibility infrastructure, on par with WAI-ARIA and HTML 5.1, across all the major browsers.

This specification defines the core roles that would be used in all structured graphics or diagrams. Future work will expand on this framework to enable more detailed annotation of data-rich graphics such as charts or maps.