Editorial issues in "assistive technology" definition

[maryjom]

I've created PR #3267 to fix a couple of minor things - purely editorial: Capitalize a sentence, and include the list of examples within the <div class="example"> All of the content including the bullets </div>.

[alastc]

Closing as the PR was merged.

[alastc]

Re-opening, I forgot this is also an erratum for 2.0/2.1.