ULs to OL to see a count

[philljenkins]

Changed UL to OL so the page reader can see a count of the WCAG rules, proposed rules, etc. Counts (numbers) are easier to read than a long list of bullets

[WilcoFiers]

@philljenkins why did you want to know the number of rules in each list? What's does it tell you to know there are 22 WCAG rules?

I'm looking to redesign this page at some point. I don't think I would do it using ordered lists though. That doesn't seem like the appropriate markup. Ordered lists are intended for things where the order of thins matter, like steps in a recipe. If we wanted to provide a count, we could probably do it at some other place in the page. Maybe even put the count in the heading.