[gnome-subtitles] help: Update a (commented) URL from Bugzilla to Gitlab

[Andre Klapper <aklapper src gnome org>]

commit 4c50bd78345e021395889402a8abc916e1954a6f
Author: Andre Klapper <a9016009 gmx de>
Date:   Sun Mar 1 09:34:03 2020 +0100

    help: Update a (commented) URL from Bugzilla to Gitlab

 help/C/index.docbook | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/help/C/index.docbook b/help/C/index.docbook
index 50d7dc4..0b1ef09 100644
--- a/help/C/index.docbook
+++ b/help/C/index.docbook
@@ -411,7 +411,7 @@
       </sect2>
       <sect2 id="gs-regex">
         <title>Using Regular Expressions</title>
-        <para>Bugs and Feature Requests can be reported at the official <ulink 
url="http://bugzilla.gnome.org/browse.cgi?product=gnome-subtitles"; type="http">Gnome Bugzilla</ulink>.</para>
+        <para>Bugs and Feature Requests can be reported in the <ulink 
url="https://gitlab.gnome.org/GNOME/gnome-subtitles/issues/"; type="http">GNOME issue tracker</ulink>.</para>
       </sect2>
     </sect1>
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