suggested links for styling paragraph.

I volunteered to provide some suggested links regarding styling capabilities
in the service of accessibility.

** candidates for linking from the appendix section

WCAG10: Checkpoint 3.3 "Use style sheets to control layout and presentation."
http://www.w3.org/TR/WCAG10/#tech-style-sheets

UAAG10: Guideline 4 "Ensure user control of rendering"
http://www.w3.org/TR/UAAG10/guidelines.html#gl-user-control-styles

** for reference on background, not inclusion in appendix

http://www.w3.org/TR/SVG/conform.html#ConformingSVGViewers

Thanks to Kentarou for helping with this action item.

Al