[css-highlights-api] Rewrap some text

See https://rhodesmill.org/brandon/2012/one-sentence-per-line/

Author: frivoal

css-highlight-api-1/Overview.bs

@@ -229,16 +229,20 @@ Registering Custom Highlights</h3>
 		The <dfn>custom highlight name</dfn> assigned to a [=custom highlight=] when it is [=registered=]
 		is used to identify the highlight during styling (see [[#styling-highlights]]).
 
-	Note: When registering a [=custom highlight=], authors are advised to use a
-	[=custom highlight name=] that is a valid CSS [=identifier=]. Using a name that is not a valid
-	identifier can make the highlight hard, and in some cases impossible, to style via CSS.
+	Note: When registering a [=custom highlight=],
+	authors are advised to use a [=custom highlight name=] that is a valid CSS [=identifier=].
+	Using a name that is not a valid identifier can make the highlight hard,
+	and in some cases impossible, to style via CSS.
 
 	Note: It is possible to [=register=] a [=custom highlight=] with more than one [=custom highlight name=].
-	However, using more than one name to style a highlight will assign the highlight multiple different sets
-	of styles, without a way to control the stacking order of conflicting styles within these sets
-	during [[#painting|painting]]. This could be limiting for authors and could cause confusing painting behavior
-	(see the <a href="#styling-problems-with-multiple-names-per-highlight">example</a> below for more context). Therefore,
-	<b>authors are advised to only use one name per highlight during styling</b>.
+	However, using more than one name to style a highlight
+	will assign the highlight multiple different sets of styles,
+	without a way to control the stacking order of conflicting styles
+	within these sets during [[#painting|painting]].
+	This could be limiting for authors and could cause confusing painting behavior
+	(see the <a href="#styling-problems-with-multiple-names-per-highlight">example</a> below for more context).
+	Therefore, <b>authors are advised to only use one name per highlight during styling</b>.
+
 	<div class=example id=styling-problems-with-multiple-names-per-highlight>
 		<xmp highlight=html>
 			<style>
@@ -260,12 +264,18 @@ Registering Custom Highlights</h3>
 				CSS.highlights.set('bar', h);
 			</script>
 		</xmp>
-		In the example above, the same [=custom highlight=] object is [=registered=] under the names 'foo' and 'bar'.
-		Since each of the [=style rules=] target the same highlight and have the same [=specificity=], authors might
-		expect the last rule to win in cascading order and the highlighted content to be green. However, each highlight
-		name gets an independent set of highlight styles, and the highlight will be painted once per name. In
-		this case, because 'foo' was registered before 'bar', the highlight will be first painted with 'foo''s
-		color (green) and then with 'bar''s color (red). As a result, the highlighted content will appear red.
+
+		In the example above,
+		the same [=custom highlight=] object is [=registered=] under the names 'foo' and 'bar'.
+		Since each of the [=style rules=] target the same highlight and have the same [=specificity=],
+		authors might expect the last rule to win in cascading order
+		and the highlighted content to be green.
+		However, each highlight name gets an independent set of highlight styles,
+		and the highlight will be painted once per name.
+		In this case, because 'foo' was registered before 'bar',
+		the highlight will be first painted with 'foo''s color (green)
+		and then with 'bar''s color (red).
+		As a result, the highlighted content will appear red.
 	</div>
 
 <h2 id=styling-highlights>