[css-box-4] metadata fixes

Author: fantasai

css-box-4/Overview.bs

@@ -15,6 +15,7 @@ Ignored Terms: internal table elements, block layout
 </pre>
 <pre class='link-defaults'>
 spec:css-sizing-3; type:dfn; text:size
+spec:css-backgrounds-3; type:property; text:border-radius
 </pre>
 
 Introduction {#intro}
@@ -610,13 +611,15 @@ Borders {#borders}
 Recent Changes {#changes}
 ==============
 
-	Changes since the previous Working Draft include:
+	Changes since the <a href="https://www.w3.org/TR/2022/WD-css-box-4-20221103/">3 November 2022 Working Draft</a> include:
 	* Removing the effect of 'margin-trim' on floats,
 		because there are use cases for both trimming and not trimming their margins,
 		and it is complicated to imlement.
 		(<a href="https://github.com/w3c/csswg-drafts/issues/8547">Issue 8547</a>)
 	* Clarifying that only descendant margins are trimmed by 'margin-trim'
 		even if self or sibling margins would have collapsed with the trimmed margin.
+	* Introducing terms for the [=shaped edge|shaped=] and [=unshaped edge|unshaped=] [=edges=] of a [=box=].
+		(<a href="https://github.com/w3c/csswg-drafts/issues/5132">Issue 5132</a>)
 
 Changes Since CSS Level 3 {#changes-since-3}
 =========================
@@ -637,8 +640,12 @@ Changes Since CSS Level 2 {#changes-since-2}
 		<li>Defining the applicability of 'margin', 'padding' and their longhands to [=ruby base containers=] and [=ruby annotation containers=]
 	</ul>
 
-Privacy and Security Considerations {#priv-sec}
+Privacy Considerations {#priv}
 ===============================================
 
-	Box Model introduces no new privacy leaks,
-	or security considerations beyond "implement it correctly".
+	No privacy considerations have been reported on this module.
+
+Security Considerations {#sec}
+===============================================
+
+	No security considerations have been reported on this module.