put emoji shortcodes in code blocks in guide

app/templates/babycode.html

@@ -43,7 +43,7 @@
           </tr>
           {% for emoji in __emoji %}
             <tr>
-              <td>:{{ emoji }}:</td>
+              <td>{{ ("[code]:%s:[/code]" % emoji) | babycode | safe }}</td>
               <td>{{ __emoji[emoji] | safe }}</td>
             </tr>
           {% endfor %}