[css-cascade-4] fix bikeshed errors

Author: tabatkins

css-cascade-4/Overview.bs

@@ -20,7 +20,6 @@ Abstract: This CSS module describes how to collate style rules and assign values
 Abstract:
 Abstract: New in this level are the ''revert'' keyword and <<supports-condition>> for the ''@import'' rule.
 Ignored Terms: auto, flex items, <supports-condition>
-Link Defaults: css21 (property) display
 </pre>
 
 <h2 id="intro">
@@ -55,7 +54,7 @@ Module Interactions</h3>
 	the <<media-query>> value type as used in this specification.
 
 	For the purpose of this specification,
-	<a>text nodes</a> are treated as <a>element</a> children of their associated element,
+	<a>text nodes</a> are treated as <a spec=css-display-3>element</a> children of their associated element,
 	and possess the full set of properties;
 	since they cannot be targetted by selectors
 	all of their computed values are assigned by <a href="#defaulting">defaulting</a>.
@@ -1066,3 +1065,8 @@ Additions to Level 2</h3>
 <h2 class="no-num" id="acknowledgments">Acknowledgments</h2>
 
 	David Baron, Tantek Çelik, Simon Sapin, and Boris Zbarsky contributed to this specification.
+
+<h2 id=priv-sec>
+Privacy and Security Considerations</h2>
+
+This specification does not introduce any new privacy or security considerations.