Fix more trailing slashes

Author: fantasai

css-2007/Overview.src.html

@@ -46,7 +46,7 @@ <h2 class="no-num no-toc" id=status>Status of this document</h2>
 
 <p>This document represents the state of CSS as of 2007. The CSS Working Group
 does not expect any further changes to this document: new snapshots will be
-published at <a href="http://www.w3.org/TR/CSS">http://www.w3.org/TR/CSS</a>
+published at <a href="http://www.w3.org/TR/CSS/">http://www.w3.org/TR/CSS/</a>
 as CSS advances.
 
 <h2 class="no-num no-toc" id="contents">Table of contents</h2>

css-2010/Overview.src.html

@@ -47,7 +47,7 @@ <h2 class="no-num no-toc" id=status>Status of this document</h2>
 
 <p>This document represents the state of CSS as of 2010. The CSS Working Group
 does not expect any further changes to this document: new snapshots will be
-published at <a href="http://www.w3.org/TR/CSS">http://www.w3.org/TR/CSS</a>
+published at <a href="http://www.w3.org/TR/CSS/">http://www.w3.org/TR/CSS/</a>
 as CSS advances.
 
 <h2 class="no-num no-toc" id="contents">Table of contents</h2>