Fix name spelling

docs/_includes/css/less.html

@@ -390,7 +390,7 @@ a {
   <p>Utility mixins are mixins that combine otherwise unrelated CSS properties to achieve a specific goal or task.</p>
 
   <h3 id="less-mixins-clearfix">Clearfix</h3>
-  <p>Forget adding <code>class="clearfix"</code> to any element and instead add the <code>.clearfix()</code> mixin where appropriate. Uses the <a href="http://nicolasgallagher.com/micro-clearfix-hack/" target="_blank">micro clearfix</a> from <a href="https://twitter.com/necolas" target="_blank">Nicolas Gallager</a>.</p>
+  <p>Forget adding <code>class="clearfix"</code> to any element and instead add the <code>.clearfix()</code> mixin where appropriate. Uses the <a href="http://nicolasgallagher.com/micro-clearfix-hack/" target="_blank">micro clearfix</a> from <a href="https://twitter.com/necolas" target="_blank">Nicolas Gallagher</a>.</p>
 {% highlight scss %}
 // Mixin
 .clearfix() {