Added an optional third parameter to heading() which allows adding html attributes to the rendered heading tag.
diff --git a/user_guide/helpers/html_helper.html b/user_guide/helpers/html_helper.html
index 1a0529f..308013d 100644
--- a/user_guide/helpers/html_helper.html
+++ b/user_guide/helpers/html_helper.html
@@ -89,6 +89,11 @@
<code>echo heading('Welcome!', 3);</code>
<p>The above would produce: <h3>Welcome!</h3></p>
+<p>Additionally, in order to add attributes to the heading tag such as HTML classes, ids or inline styles, a third parameter is available.</p>
+<code>echo heading('Welcome!', 3, 'class="pink"')</code>
+<p>The above code produces: <h3 class="pink">Welcome!<<h3></p>
+
+
<h2><a name="img"></a>img()</h2>
<p>Lets you create HTML <img /> tags. The first parameter contains the image source. Example:</p>
<code>echo img('images/picture.jpg');<br />