[css-text-3] Tweak example wording

Author: fantasai

css-text-3/Overview.bs

@@ -5580,18 +5580,20 @@ Identifying the Content Writing System</h2>
 	and should therefore be typeset similar to Chinese
 	rather than modern Korean.
 
+<!-- Tagging the Writing System -->
+
 	In [[HTML]] or any other <a>document language</a> using [[BCP47]] to declare the [=content language=],
-	authors can indicate the use of an atypical writing system
+	authors can disambiguate or indicate the use of an atypical writing system
 	with script subtags.
 	For example, to indicate use of the Latin writing system
 	for languages which don't natively use it,
 	the <code>-Latn</code> script subtag can be added,
 	e.g. <code>ja-Latn</code> for Japanese romaji.
-	Other subtags exist for other writing systems:
-	see [[BCP47]], [[ISO15924]], and the <a href="http://unicode.org/iso15924/iso15924-codes.html">ISO15924 script tag registry</a>.
-	Some common/historical examples follow:
+	Other subtags exist for other writing systems,
+	see [[ISO15924]] and the <a href="http://unicode.org/iso15924/iso15924-codes.html">ISO15924 script tag registry</a>.
 
 	<div class="example">
+		Some common/historical examples of using [[BCP47]] tags with script subtags:
 		<dl>
 			<dt><code>zh-Latn</code>
 			<dd>Chinese, written in Latin transcription.
@@ -5611,6 +5613,8 @@ Identifying the Content Writing System</h2>
 	<a href="https://www.w3.org/International/articles/language-tags/">“Language tags in HTML and XML”</a>
 	and <a href="https://www.w3.org/International/questions/qa-choosing-language-tags">“Choosing a Language Tag”</a>.
 
+<!-- Assuming the Writing System -->
+
 	When no writing system is explicitly indicated,
 	UAs should assume the most common writing system
 	of the declared <a>content language</a>