Identify further updates to A11y View to make it clear public-facing document for show casing available description (Interactive, Core, Some)

We have made several recent improvements to how the descriptions and the PDOM are displayed in the A11y View Tool.

This tool is essential internally for devs and designers.
Teachers have a link from the Teacher Tips document (not sure how much it is referenced.)
@LindaStegemann would like it to be linked in the Sim Feature Tracking spreadsheet for each sim.

To make it more readily available available and public facing, I think we want to make sure that it's purpose is clearly communicated to more general audience, especially those who are looking for WCAG compliant sims.

List of improvement/framing changes:

1. Re-frame all surrounding explanatory language. (who is the audience?)
2. Make it super clear this is not a tool for students or screen reader users.
3. It's a tool that exposes what a screen has access to.
4. It is a design and testing tool for designers, devs, and researchers.
5. For Accessibility purposes it communicates to non-screen reader users, e.g., educators and administrators, how much description and what kind of description is available in simulations.