Blog excerpts

_layouts/blog.html

@@ -14,6 +14,7 @@ layout: default
         <h2>
           <a class="post-link" href="{{ post.url | prepend: site.baseurl }}">{{ post.title }}</a>
         </h2>
+        {{ post.excerpt | replace:'</p>','...</p>'}}
       </li>
     {% endfor %}
   </ul>