Add example in README

Author: raph6

README.md

@@ -27,8 +27,10 @@ Method : get()
 Returns TRUE on success or FALSE on failure.
 
 ## Example of use
-* $o = new HttpRequest;
-* $o->setUrl('http://devraph.net/api.php?option=test'); // SETTING URL
-* $o->setPost(array('login' => 'raph', 'password' => 'demo')); // SETTING REQUEST
-* $o->setTimeout(15); // SETTING TIMEOUT
-* $o->post(); // POST
+```php
+$o = new HttpRequest;
+$o->setUrl('http://devraph.net/api.php?option=test'); // SETTING URL
+$o->setPost(array('login' => 'raph', 'password' => 'demo')); // SETTING REQUEST
+$o->setTimeout(15); // SETTING TIMEOUT
+$o->post(); // POST
+```