[css-fonts-4] Consistently use generic(fangsong) w3c#4425

Author: svgeesus

css-fonts-4/Overview.bs

@@ -242,7 +242,7 @@ Font family: the 'font-family!!property' property</h3>
 				only apply to a subset of Unicode characters,
 				and may not match to a locally installed font
 				on some systems.
-				For example, ''fangsong''.
+				For example, ''generic(fangsong)''.
 
 	        Authors are encouraged to append a generic font family as a last alternative
 	        for improved robustness,
@@ -376,12 +376,12 @@ Syntax of <<generic-family>>
 			body { font-family: "Adobe Fangsong Std R", generic(fangsong), serif}
 		</pre>
 
-		The first choice in this example is a specific font, in fangsong style.
+		The first choice in this example is a specific, named font, in Fang Song (仿宋) style.
 		The family name is enclosed in quotes as it contains space characters.
-		The second is a recently added generic font; it is unicode-range specific
+		The second is a recently added script-specific generic font; it is unicode-range specific
 		and so may not match to an actual installed font on some systems;
 		but if it exists it will be an example of the requested style.
-		The third is a generic font, which is guaranteed to match on all systems.
+		The third is a universal generic font, which is guaranteed to match on all systems.
 	</div>
 
 <h4 id="system">
@@ -628,7 +628,7 @@ Generic font families</h4>
 			stylistic and stretching glyph variants
 			useful in setting mathematical equations.
 
-	    <dt id="fangsong-def"><dfn>fangsong</dfn>
+	    <dt id="fangsong-def"><dfn>generic(fangsong)</dfn>
 	    <dd>
 			This font family is used for Fang Song (仿宋) typefaces in Chinese.
 			Fang Song is a relaxed, intermediate form