Updating the extension to be .html

source/index.html.erb

@@ -35,7 +35,7 @@ per_page: 10
   <div class="row">
     <div class="col-md-offset-3 col-md-9">
       <h2>Contribution Guidelines</h2>
-      <p>Ideally we are looking for <b>hack night / game resources</b>.  While we do have a <a href="./beginner_resources">list of beginner Ruby resources</a>,
+      <p>Ideally we are looking for <b>hack night / game resources</b>.  While we do have a <a href="./beginner_resources.html">list of beginner Ruby resources</a>,
       ideally we are looking for things which are:</p>
       <ol>
         <li><b>Ready to go.</b>.<br/>There shouldn't be too much configuration required to get the resource running.  Otherwise it's not making your life easier ;)</li>