[css-text-3] Fix bikeshed warning

Author: kojiishi

css-text/Overview.bs

@@ -933,7 +933,7 @@ Line Breaking Details</h3>
     </div>
 
     <p>When shaping scripts such as Arabic
-      are allowed to break within words due to ''break-all'' or ''break-word'',
+      are allowed to break within words due to ''break-all'' or ''word-break/break-word'',
       the characters must still be shaped
       as if the word were <a href="#word-break-shaping">not broken</a>.