renaming images files

Author: zenorocha

demo/index.html

@@ -30,7 +30,7 @@ <h1>jQuery Github Repos</h1>
     <div class="github-widget" data-repo="zenorocha/hub.me"></div>
   </div>
 
-  <img id="github-logo" src="img/cat.png" alt="Github's Logo" />
+  <img id="github-logo" src="img/github-cat.png" alt="Github Cat" />
 
   <a href="https://github.com/zenorocha/github-project-repos">
     <img class="github-ribbon" src="img/github-ribbon.png" alt="Fork me on GitHub">