Update README.md

Author: Wilto

README.md

@@ -3,5 +3,7 @@ This is a non-official version of the proposal at: <a href="http://dvcs.w3.org/h
 This repo is indended solely for the sake of basic issue tracking, and public contributions to the editing and formatting of the proposal. Discussion of potential/outstanding issues with the proposal should remain on the <a href="mailto:public-html@w3.org">HTML WG mailing list</a>, <a href="public-respimg@w3.org"><abbr title="Responsive Images Community Group">RICG mailing list</a>, or both.
 
 **Issue tracking:** <a href="https://github.com/Wilto/draft-prop/issues/">https://github.com/Wilto/draft-prop/issues/</a>
+
 **Draft preview:** <a href="https://github.com/Wilto/draft-prop/issues/">http://wilto.github.com/draft-prop/ResponsiveImages.html</a>
+
 **Formally Published:** http://dvcs.w3.org/hg/html-proposals/raw-file/tip/responsive-images/responsive-images.html