Fix typo front controller page

src/content/1.7/modules/concepts/controllers/front-controllers.md

@@ -154,7 +154,7 @@ Context::getContext()->link->getModuleLink('cheque', 'validation', array('idPaym
 
 ### Ajax request
 
-When you call controller via AJAX, you nedd to add `ajax` parameter in the url.
+When you call controller via AJAX, you need to add `ajax` parameter in the url.
 
 ```php
 Context::getContext()->link->getModuleLink('cheque', 'validation', array('idPayment' => 1337, 'ajax'=>true));