[css-page-3] Add css-break-3 cross-reference and drop duplicate text in intro

Author: fantasai

css-page-3/Overview.bs

@@ -98,9 +98,11 @@ Introduction</h2>
 	CSS3 assumes that one page box will be transferred to one surface of similar
 	size.
 
-	All properties defined in this specification also accept the
-	<a href="https://www.w3.org/TR/CSS2/cascade.html#value-def-inherit">inherit</a>
-	keyword as their value, but for readability it has not been listed explicitly.
+	Note: The [[CSS-BREAK-4]] specification
+	addresses controls over [=fragmentation=] (pagination),
+	such as the 'break-before', 'break-after', 'break-inside',
+	'widows', and 'orphans' properties.
+
 </div>
 
 <h3 id="values">