Documentation - Fix Testing Debugging - Fixed Kint Link

Signed-off-by: Najdanovic Ivan <najdanovicivan@gmail.com>

Author: najdanovicivan

user_guide_src/source/testing/debugging.rst

@@ -11,7 +11,7 @@ Replace var_dump
 ================
 
 While using XDebug and a good IDE can be indispensable to debug your application, sometimes a quick ``var_dump()`` is
-all you need. CodeIgniter makes that even better by bundling in the excellent `Kint <https://raveren.github.io/kint/>`_
+all you need. CodeIgniter makes that even better by bundling in the excellent `Kint <https://kint-php.github.io/kint/>`_
 debugging tool for PHP. This goes way beyond your usual tool, providing many alternate pieces of data, like formatting
 timestamps into recognizable dates, showing you hexcodes as colors, display array data like a table for easy reading,
 and much, much more.