Minor doc update

Author: ywarnier

documentation/optimization.html

@@ -24,7 +24,7 @@ <h1>Chamilo 1.8.8.2 : Optimization Guide</h1>
 <div id="main">
 <p></p>
 
-<p>In seldom cases, you will need to start looking into efficiency issues with Chamilo. This guide is a work in progress intended to help administrators optimize their Chamilo installtion.</p>
+<p>In seldom cases, you will need to start looking into efficiency issues with Chamilo. This guide is a work in progress intended to help administrators optimize their Chamilo installation.</p>
 
 
 <h2><b>Contents</b></h2>