Fix sc144 link (act-rules#2326)

Author: daniel-montalvo

_rules/zoom-text-no-overflow-clipping-59br37.md

@@ -290,3 +290,4 @@ This [text node][] with the text "Web Content Accessibility Guidelines 2.1" is f
 [viewport size]: #viewport-size
 [visible]: #visible
 [white-space]: https://www.w3.org/TR/CSS22/text.html#propdef-white-space
+[sc144]: https://www.w3.org/TR/WCAG22/#resize-text