copy tweaks

index.html

@@ -280,8 +280,8 @@ function linkify( selector ) {
 				<section>
 					<h2>Stellar Links</h2>
 					<ul>
-						<li><a href="https://github.com/hakimel/reveal.js">Source code on github</a></li>
-						<li><a href="http://hakim.se/projects/reveal-js">Read more on my site</a></li>
+						<li><a href="https://github.com/hakimel/reveal.js">Source code on GitHub</a></li>
+						<li><a href="http://hakim.se/projects/reveal-js">Leave feedback on my site</a></li>
 						<li><a href="http://twitter.com/hakimel">Follow me on Twitter</a></li>
 					</ul>
 				</section>