[css-cascade] Fix abstract and title caps.

Author: tabatkins

css-cascade/Overview.bs

@@ -14,6 +14,8 @@ Previous Version: http://www.w3.org/TR/2013/WD-css3-cascade-20130103/
 Previous Version: http://www.w3.org/TR/2005/WD-css3-cascade-20051215/
 Issue Tracking: Disposition of Comments http://dev.w3.org/csswg/css-cascade/issues
 Abstract: This CSS module describes how to collate style rules and assign values to all properties on all elements. By way of cascading and inheritance, values are propagated for all properties on all elements.
+Abstract:
+Abstract: New in this level are the ''default'' keyword and <<supports-condition>> for the ''@import'' rule.
 Ignored Terms: auto, flex items, <supports-condition>
 Link Defaults: css21 (property) display
 </pre>
@@ -875,7 +877,7 @@ Erasing All Declarations: the ''unset'' keyword</h4>
 	(or all longhands of a <a>shorthand</a>).
 
 <h4 id="default">
-Rolling back the cascade: the ''default'' keyword</h4>
+Rolling Back The Cascade: the ''default'' keyword</h4>
 
 	If the <a>cascaded value</a> of a property is the <dfn for=all>''default''</dfn> keyword,
 	the behavior depends on the origin to which the declaration belongs: