Updated doc's to reflect latest changes

docs.html

@@ -161,6 +161,7 @@
     Robots: noindex,nofollow
 */
 </code></pre>
+		  <p><em>If no title meta data is provided, the first heading in the file will be used.</em></p>
 		  <p>These values will be contained in the <code>{{ meta }}</code> variable in themes (see below).
 		  There are also certain variables that you can use in your text files:</p>
 		  <ul>