[css-text-4] Improve cross-linking

Author: fantasai

css-text-4/Overview.bs

@@ -8302,19 +8302,19 @@ Text Spacing Character Classes</h4>
 
 	<dl>
 		<dt><dfn>ideographs</dfn>
-		<dd>Includes all typographic character units [[CSS-TEXT-3]] whose base character is listed below:
+		<dd>Includes all [=typographic character units=] [[CSS-TEXT-3]] whose base character is listed below:
 			<ul>
 				<li>All characters in the range of U+3041 to U+30FF,
-					except those that belong to Unicode Punctuation [P*] category.
+					except those that belong to Unicode Punctuation [P*] [=general category=].
 				<li>CJK Strokes (U+31C0 to U+31EF).
 				<li>Katakana Phonetic Extensions (U+31F0 to U+31FF).
-				<li>All characters that belongs to Han Unicode Script Property [[!UAX24]].
+				<li>All characters that have the Han [=script property=].
 			</ul>
 
 		<dt><dfn>non-ideographic letters</dfn>
 		<dd>
-			Includes all typographic character units that
-			belong to Unicode Letters [L*] and Mark [M*] category,
+			Includes all [=typographic character units=] that
+			belong to Unicode Letters [L*] and Mark [M*] [=general category=],
 			except when any of the following conditions are met:
 			<ul>
 				<li>is defined as <a>ideograph</a>.
@@ -8325,8 +8325,8 @@ Text Spacing Character Classes</h4>
 
 		<dt><dfn>non-ideographic numerals</dfn>
 		<dd>
-			Includes all typographic character units that
-			belong to the Unicode Decimal Digit Number [Nd] category,
+			Includes all [=typographic character=] units that
+			belong to the Unicode Decimal Digit Number [Nd] [=general category=],
 			except when any of the following conditions are met:
 			<ul>
 				<li>is categorized as East Asian Fullwidth (F) by [[!UAX11]].