[css-text] Interaction between line-break:break-all and GL, WJ, and ZWJ

Author: frivoal

css-text/Overview.bs

@@ -973,7 +973,8 @@ Line Breaking Details</h3>
       <dt><dfn>break-all</dfn></dt>
       <dd>There is a <a>soft wrap opportunity</a> around every <a>typographic character unit</a>,
       including around any punctuation character or preserved spaces,
-      or in the middle of words.
+      or in the middle of words,
+      disregarding any prohibition against line breaks introduced by characters with the GL, JW, or ZJW character class (see [[UAX14]]).
       The different wrapping opportunities must not be prioritized.
       Hyphenation is not applied.