update git url

resources/forms/preferences.ui

@@ -2736,7 +2736,7 @@ p, li { white-space: pre-wrap; }
 <p style="-qt-paragraph-type:empty; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;"><br /></p>
 <p style=" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;">OpenBoard is derived from Open-Sankoré. Open-Sankoré is copyright © 2010-2013 Groupement d'Intérêt Public pour l'Education Numérique en Afrique (GIP ENA). All right reserved.</p>
 <p style="-qt-paragraph-type:empty; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;"><br /></p>
-<p style=" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;">OpenBoard is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 3 of the License, with a specific linking exception for the OpenSSL project's "OpenSSL" library (or with modified versions of it that use the same license as the "OpenSSL" library). You can find the source code of this software at <https://github.com/uniboard></p>
+<p style=" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;">OpenBoard is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 3 of the License, with a specific linking exception for the OpenSSL project's "OpenSSL" library (or with modified versions of it that use the same license as the "OpenSSL" library). You can find the source code of this software at  <https://github.com/OpenEducationFoundation></p>
 <p style=" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;">OpenBoard is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License below for more details.</p>
 <p style="-qt-paragraph-type:empty; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;"><br /></p>
 <p style=" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;">Contact :</p>