[css-overflow-3] Fix links

Author: fantasai

css-overflow-3/Overview.bs

@@ -722,14 +722,14 @@ Smooth Scrolling: The 'scroll-behavior' Property</h3>
 	Name: scroll-behavior
 	Value: auto | smooth
 	Initial: auto
-	Applies to: <a>scrolling boxes</a>
+	Applies to: [=scroll containers=]
 	Inherited: no
 	Computed value:    specified value
 	Animatable: no
 	Canonical Order: per grammar
 	</pre>
 
-	The 'scroll-behavior' property specifies the scrolling behavior for a <a>scrolling box</a>,
+	The 'scroll-behavior' property specifies the scrolling behavior for a [=scroll container=],
 	when scrolling happens due to navigation,
 	scrolling APIs [[!CSSOM-VIEW]],
 	or scroll snapping operations not initiated by the user [[!CSS-SCROLL-SNAP-1]].
@@ -741,11 +741,11 @@ Smooth Scrolling: The 'scroll-behavior' Property</h3>
 	<dl dfn-type=value dfn-for=scroll-behavior>
 		<dt><dfn>auto</dfn>
 		<dd>
-			The <a>scrolling box</a> is scrolled in an <a spec=cssom-view lt="instant scroll">instant</a> fashion.
+			The [=scroll container=] is scrolled in an <a spec=cssom-view lt="instant scroll">instant</a> fashion.
 
 		<dt><dfn>smooth</dfn>
 		<dd>
-			The <a>scrolling box</a> is scrolled in a <a spec=cssom-view lt="smooth scroll">smooth</a> fashion
+			The [=scroll container=] is scrolled in a <a spec=cssom-view lt="smooth scroll">smooth</a> fashion
 			using a user-agent-defined timing function over a user-agent-defined period of time.
 			User agents should follow platform conventions, if any. <!--fingerprint-->
 	</dl>
@@ -1712,7 +1712,7 @@ Changes from the <a href="https://www.w3.org/TR/2021/WD-css-overflow-3-20211202/
 		for ''continue: discard'' (and that other types of breaks do not);
 		and gave examples of what triggers a [=region break=] on such a box.
 	* Minor clarifications:
-		* Annotate <<length-percentage>> value definitions using [=bracketed range notation=].
+		* Annotate <<length-percentage>> value definitions using [=CSS bracketed range notation=].
 
 <h3 id="changes-since-2020-06-03">
 Changes from the <a href="https://www.w3.org/TR/2020/WD-css-overflow-3-20200603/">2020-06-03 Working Draft</a></h3>