Added remote repo and added issue

Author: Greg Whitworth

css-tables-3/Overview.bs

@@ -7,6 +7,7 @@ Work Status: Exploring
 Group: csswg
 ED: https://drafts.csswg.org/css-tables-3/
 TR: https://www.w3.org/TR/CSS2/tables.html
+Repository: w3c/csswg-drafts
 Editor: Francois Remy, Microsoft
 Editor: Greg Whitworth, Microsoft
 Former editor: Bert Bos, W3C
@@ -175,9 +176,10 @@ spec:css21; type:property; text:max-width
 				<code>block</code> (for all other values).
 			Whitespace collapsing and box generation must happen around those replaced elements 
 				like if they never had any other display type.
-			<br/>
-			<span class="issue">This is a breaking change from css 2.1 but matches implementations</span>
+			<br/>			
 		</p>
+
+		ISSUE(508): This is a breaking change from css 2.1 but matches implementations
 
 		<h4 id="terminology">Terminology</h2>