[css-writing-modes] Update Changes section

Author: kojiishi

css-writing-modes/Overview.bs

@@ -2609,12 +2609,16 @@ Full-width Characters</h5>
     <li>Removed ''sideways-left'' value of 'text-orientation' and added ''sideways-lr'' and ''sideways-rl'' values to 'writing-mode'.
     <li>Removed ''use-glyph-orientation'' value of 'text-orientation' and defined 'glyph-orientation-vertical' as an alias of 'text-orientation'
       consistent with how CSS aliases are handled (see 'page-break-inside' for an example).
-  </ul>
-
-  <ul>
     <li>
       Removed statements about ''run-in'' boxes, since this value was removed from CSS2.1 and has a substantially different model in CSS Display Level 3.
       Replaced with a generalized statement about all display types, using new [[!CSS-DISPLAY-3]] terminology.
+    <li>
+      Changed to propagate the computed values of the 'writing-mode' and the 'direction' property
+      from body child element to the root element.
+    <li>
+      Changed the 'caption-side' property to <a href="#logical-direction-layout">flow-relative mappings</a>.
+    <li>
+      Made several editorial improvements and marked some features <a href="#status">at risk</a>.
   </ul>
 
 <h2 class="no-num" id="acknowledgements">