[kdesignerplugin] docs/kgendesignerplugin: Update link in docs

[Yuri Chornoivan]

Git commit dfb32f031d09732b900768c5dd86b7ed50c9eaa1 by Yuri Chornoivan.
Committed on 01/03/2020 at 16:34.
Pushed by yurchor into branch 'master'.

Update link in docs

M  +1    -1    docs/kgendesignerplugin/man-kgendesignerplugin.1.docbook

https://commits.kde.org/kdesignerplugin/dfb32f031d09732b900768c5dd86b7ed50c9eaa1

diff --git a/docs/kgendesignerplugin/man-kgendesignerplugin.1.docbook b/docs/kgendesignerplugin/man-kgendesignerplugin.1.docbook
index 6fbe0e1..654c180 100644
--- a/docs/kgendesignerplugin/man-kgendesignerplugin.1.docbook
+++ b/docs/kgendesignerplugin/man-kgendesignerplugin.1.docbook
@@ -411,7 +411,7 @@ ImplClass=FancyWidgetPreview
   <variablelist>
     <varlistentry>
       <term>
-        <uri>http://qt-project.org/doc/qt-5/designer-creating-custom-widgets.html</uri>
+        <uri>https://doc.qt.io/qt-5/designer-creating-custom-widgets.html</uri>
       </term>
       <listitem>
         <para>The &Qt; Designer documentation on creating plugins for custom widgets.</para>