minor #6 fixed qt class help page url [ci skip] (crash5)

This PR was merged into the master branch.

Discussion
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fixed qt class help page url [ci skip]

Commits
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c60fbab fixed qt class help page url [ci skip]

Author: javiereguiluz

geshi/cpp-qt.php

@@ -540,7 +540,7 @@
         2 => '',
         3 => '',
         4 => '',
-        5 => 'http://doc.trolltech.com/latest/{FNAMEL}.html'
+        5 => 'http://doc.qt.io/qt-5/{FNAMEL}.html'
         ),
     'OOLANG' => true,
     'OBJECT_SPLITTERS' => array(