Remove filler content

• move Index, Projects, and Blog to markdown instead of html files
• fix small syntax error in post-info.html, goddamn HTML and its silent
error handling 😖
• remove filler content in index, as well as some tags I was using for
testing

_includes/post-info.html

@@ -12,6 +12,7 @@
                     none
                 {% endif %}
             </small>
+        </td>
         <td  class="post-date" style="text-align:right">
             <small>
                 <i>{{ include.date | date: "%b&nbsp;%-d,&nbsp;%Y" }}</i>