fix: apigen url

Author: flegastelois

source/devapi/index.rst

@@ -1,7 +1,7 @@
 Developer API
 =============
 
-Apart from the current documentation, you can also generate the full PHP documentation of GLPI (built with `apigen <http://www.apigen.org/>`_) using the ``tools/genapidoc.sh`` script.
+Apart from the current documentation, you can also generate the full PHP documentation of GLPI (built with `apigen <https://github.com/ApiGen/ApiGen>`_) using the ``tools/genapidoc.sh`` script.
 
 .. toctree::
    :maxdepth: 2

source/devapi/tools.rst

@@ -14,7 +14,7 @@ The locale directory contains several scripts used to maintain :doc:`translation
 genapidoc.sh
 ------------
 
-Generate GLPI phpdoc using `apigen <http://www.apigen.org/>`_. ``apigen`` command must be available in your path.
+Generate GLPI phpdoc using `apigen <https://github.com/ApiGen/ApiGen>`_. ``apigen`` command must be available in your path.
 
 Generated documentation will be available in the ``api`` directory.